Gotowe bibliografie tematyczne / Copolymers and blends

Spis treści

  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
  6. Raporty organizacyjne

Gotowa bibliografia na temat „Copolymers and blends”

Autor: Grafiati
Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Copolymers and blends"

1

Liu, Jing, Hsiang-Ching Wang, Chean-Cheng Su i Cheng-Fu Yang. "Chemical Interaction-Induced Evolution of Phase Compatibilization in Blends of Poly(hydroxy ether of bisphenol-A)/Poly(1,4-butylene terephthalate)". Materials 11, nr 9 (9.09.2018): 1667. http://dx.doi.org/10.3390/ma11091667.

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An immiscible blend of poly(hydroxy ether of bisphenol-A) (phenoxy) and poly(1,4-butylene terephthalate) (PBT) with phase separation was observed in as-blended samples. The compatibilization of phenoxy/PBT blends can be promoted through chemical exchange reactions of phenoxy with PBT upon annealing. The annealed phenoxy/PBT blends had a homogeneous phase with a single Tg that could be enhanced by annealing at 260 °C. Infrared (IR) spectroscopy demonstrated that phase homogenization could be promoted by annealing the phenoxy/PBT blend, where alcoholytic exchange occurred between the dangling hydroxyl group (–OH) in phenoxy and the carbonyl group (C=O) in PBT in the heated blends. The alcoholysis reaction changed the aromatic linkages to aliphatic linkages in the carbonyl groups, which initially led to the formation of a graft copolymer of phenoxy and PBT with an aliphatic/aliphatic carbonyl link. The progressive alcoholysis reaction resulted in the transformation of the initial homopolymers into block copolymers and finally into random copolymers, which promoted phase compatibilization in blends of phenoxy with PBT. As the amount of copolymers increased upon annealing, the crystallization of PBT was inhibited by alcoholytic exchange in the blends.
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Otero Navas, Ivonne, Milad Kamkar, Mohammad Arjmand i Uttandaraman Sundararaj. "Morphology Evolution, Molecular Simulation, Electrical Properties, and Rheology of Carbon Nanotube/Polypropylene/Polystyrene Blend Nanocomposites: Effect of Molecular Interaction between Styrene-Butadiene Block Copolymer and Carbon Nanotube". Polymers 13, nr 2 (11.01.2021): 230. http://dx.doi.org/10.3390/polym13020230.

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This work studied the impact of three types of styrene-butadiene (SB and SBS) block copolymers on the morphology, electrical, and rheological properties of immiscible blends of polypropylene:polystyrene (PP:PS)/multi-walled carbon nanotubes (MWCNT) with a fixed blend ratio of 70:30 vol.%. The addition of block copolymers to PP:PS/MWCNT blend nanocomposites produced a decrease in the droplet size. MWCNTs, known to induce co-continuity in PP:PS blends, did not interfere with the copolymer migration to the interface and, thus, there was morphology refinement upon addition of the copolymers. Interestingly, the addition of the block copolymers decreased the electrical resistivity of the PP:PS/1.0 vol.% MWCNT system by 5 orders of magnitude (i.e., increase in electrical conductivity). This improvement was attributed to PS Droplets-PP-Copolymer-Micelle assemblies, which accumulated MWCNTs, and formed an integrated network for electrical conduction. Molecular simulation and solubility parameters were used to predict the MWCNT localization in the immiscible blend. The simulation results showed that diblock copolymers favorably interact with the nanotubes in comparison to the triblock copolymer, PP, and PS. However, the interaction between the copolymers and PP or PS is stronger than the interaction of the copolymers and MWCNTs. Hence, the addition of copolymer also changed the localization of MWCNT from PS to PS–PP–Micelles–Interface, as observed by TEM images. In addition, in the last step of this work, we investigated the effect of the addition of copolymers on inter- and intra-cycle viscoelastic behavior of the MWCNT incorporated polymer blends. It was found that addition of the copolymers not only affects the linear viscoelasticity (e.g., increase in the value of the storage modulus) but also dramatically impacts the nonlinear viscoelastic behavior under large deformations (e.g., higher distortion of Lissajous–Bowditch plots).]
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Otero Navas, Ivonne Otero, Milad Kamkar, Mohammad Arjmand i Uttandaraman Sundararaj. "Morphology Evolution, Molecular Simulation, Electrical Properties, and Rheology of Carbon Nanotube/Polypropylene/Polystyrene Blend Nanocomposites: Effect of Molecular Interaction between Styrene-Butadiene Block Copolymer and Carbon Nanotube". Polymers 13, nr 2 (11.01.2021): 230. http://dx.doi.org/10.3390/polym13020230.

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This work studied the impact of three types of styrene-butadiene (SB and SBS) block copolymers on the morphology, electrical, and rheological properties of immiscible blends of polypropylene:polystyrene (PP:PS)/multi-walled carbon nanotubes (MWCNT) with a fixed blend ratio of 70:30 vol.%. The addition of block copolymers to PP:PS/MWCNT blend nanocomposites produced a decrease in the droplet size. MWCNTs, known to induce co-continuity in PP:PS blends, did not interfere with the copolymer migration to the interface and, thus, there was morphology refinement upon addition of the copolymers. Interestingly, the addition of the block copolymers decreased the electrical resistivity of the PP:PS/1.0 vol.% MWCNT system by 5 orders of magnitude (i.e., increase in electrical conductivity). This improvement was attributed to PS Droplets-PP-Copolymer-Micelle assemblies, which accumulated MWCNTs, and formed an integrated network for electrical conduction. Molecular simulation and solubility parameters were used to predict the MWCNT localization in the immiscible blend. The simulation results showed that diblock copolymers favorably interact with the nanotubes in comparison to the triblock copolymer, PP, and PS. However, the interaction between the copolymers and PP or PS is stronger than the interaction of the copolymers and MWCNTs. Hence, the addition of copolymer also changed the localization of MWCNT from PS to PS–PP–Micelles–Interface, as observed by TEM images. In addition, in the last step of this work, we investigated the effect of the addition of copolymers on inter- and intra-cycle viscoelastic behavior of the MWCNT incorporated polymer blends. It was found that addition of the copolymers not only affects the linear viscoelasticity (e.g., increase in the value of the storage modulus) but also dramatically impacts the nonlinear viscoelastic behavior under large deformations (e.g., higher distortion of Lissajous–Bowditch plots).
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Liu, Dongmei, Meiyuan Yang, Danping Wang, Xueying Jing, Ye Lin, Lei Feng i Xiaozheng Duan. "DPD Study on the Interfacial Properties of PEO/PEO-PPO-PEO/PPO Ternary Blends: Effects of Pluronic Structure and Concentration". Polymers 13, nr 17 (26.08.2021): 2866. http://dx.doi.org/10.3390/polym13172866.

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Using the method of dissipative particle dynamics (DPD) simulations, we investigated the interfacial properties of PEO/PEO-PPO-PEO/PPO ternary blends composed of the Pluronics L64(EO13PO30EO13), F68(EO76PO29EO76), F88(EO104PO39EO104), or F127(EO106PO70EO106) triblock copolymers. Our simulations show that: (i) The interfacial tensions (γ) of the ternary blends obey the relationship γF68 < γL64 < γF88 < γF127, which indicates that triblock copolymer F68 is most effective in reducing the interfacial tension, compared to L64, F88, and F127; (ii) For the blends of PEO/L64/PPO and the F64 copolymer concentration ranging from ccp = 0.2 to 0.4, the interface exhibits a saturation state, which results in the aggregation and micelle formation of F64 copolymers added to the blends, and a lowered efficiency of the L64 copolymers as a compatibilizer, thus, the interfacial tension decreases slightly; (iii) For the blends of PEO/F68/PPO, elevating the Pluronic copolymer concentration can promote Pluronic copolymer enrichment at the interfaces without forming the micelles, which reduces the interfacial tension significantly. The interfacial properties of the blends contained the PEO-PPO-PEO triblock copolymer compatibilizers are, thus, controlled by the triblock copolymer structure and the concentration. This work provides important insights into the use of the PEO-PPO-PEO triblock copolymer as compatibilizers in the PEO and PPO homopolymer blend systems.
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Smith, S. D., R. J. Spontak, D. H. Melik, S. M. Buehler, K. M. Kerr i R. J. Roe. "Morphological behavior of compatibilized ternary blends prepared by mechanical mixing". Proceedings, annual meeting, Electron Microscopy Society of America 51 (1.08.1993): 1200–1201. http://dx.doi.org/10.1017/s0424820100151830.

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When blended together, homopolymers A and B will normally macrophase-separate into relatively large (≫1 μm) A-rich and B-rich phases, between which exists poor interfacial adhesion, due to a low entropy of mixing. The size scale of phase separation in such a blend can be reduced, and the extent of interfacial A-B contact and entanglement enhanced, via addition of an emulsifying agent such as an AB diblock copolymer. Diblock copolymers consist of a long sequence of A monomers covalently bonded to a long sequence of B monomers. These materials are surface-active and decrease interfacial tension between immiscible phases much in the same way as do small-molecule surfactants. Previous studies have clearly demonstrated the utility of block copolymers in compatibilizing homopolymer blends and enhancing blend properties such as fracture toughness. It is now recognized that optimization of emulsified ternary blends relies upon design considerations such as sufficient block penetration into a macrophase (to avoid block slip) and prevention of a copolymer multilayer at the A-B interface (to avoid intralayer failure).
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Liu, Dongmei, Kai Gong, Ye Lin, Tao Liu, Yu Liu i Xiaozheng Duan. "Dissipative Particle Dynamics Study on Interfacial Properties of Symmetric Ternary Polymeric Blends". Polymers 13, nr 9 (8.05.2021): 1516. http://dx.doi.org/10.3390/polym13091516.

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We investigated the interfacial properties of symmetric ternary An/AmBm/Bn and An/Am/2BmAm/2/Bn polymeric blends by means of dissipative particle dynamics (DPD) simulations. We systematically analyzed the effects of composition, chain length, and concentration of the copolymers on the interfacial tensions, interfacial widths, and the structures of each polymer component in the blends. Our simulations show that: (i) the efficiency of the copolymers in reducing the interfacial tension is highly dependent on their compositions. The triblock copolymers are more effective in reducing the interfacial tension compared to that of the diblock copolymers at the same chain length and concentration; (ii) the interfacial tension of the blends increases with increases in the triblock copolymer chain length, which indicates that the triblock copolymers with a shorter chain length exhibit a better performance as the compatibilizers compared to that of their counterparts with longer chain lengths; and (iii) elevating the triblock copolymer concentration can promote copolymer enrichment at the center of the interface, which enlarges the width of the phase interfaces and reduces the interfacial tension. These findings illustrate the correlations between the efficiency of copolymer compatibilizers and their detailed molecular parameters.
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Przybysz-Romatowska, Marta, Józef Haponiuk i Krzysztof Formela. "Poly(ε-Caprolactone)/Poly(Lactic Acid) Blends Compatibilized by Peroxide Initiators: Comparison of Two Strategies". Polymers 12, nr 1 (16.01.2020): 228. http://dx.doi.org/10.3390/polym12010228.

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Poly(ε-caprolactone) (PCL) and poly(lactic acid) (PLA) blends were compatibilized by reactive blending and by copolymers formed during reaction in the solution. The reactive blending of PCL/PLA was performed using di-(2-tert-butyl-peroxyisopropyl)benzene (BIB) or dicumyl peroxide (DCP) as radical initiator. PCL-g-PLA copolymers were prepared using 1.0 wt. % of DCP or BIB via reaction in solution, which was investigated through a Fourier transform infrared spectrometry (FTIR) and nuclear magnetic resonance (NMR) in order to better understand the occurring mechanisms. The effect of different additions such as PCL-g-PLA copolymers, DCP, or BIB on the properties of PCL/PLA blends was studied. The unmodified PCL/PLA blends showed a sea-island morphology typical of incompatible blends, where PLA droplets were dispersed in the PCL matrix. Application of organic peroxides improved miscibility between PCL and PLA phases. A similar effect was observed for PCL/PLA blend compatibilized by PCL-g-PLA copolymer, where BIB was used as initiator. However, in case of application of the peroxides, the PCL/PLA blends were cross-linked, and it has been confirmed by the gel fraction and melt flow index measurements. The thermal and mechanical properties of the blends were also investigated by means of differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), and tensile strength.
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Frielinghaus, H., D. Schwahn, K. Mortensen, L. Willner i K. Almdal. "Pressure and Temperature Effects in Homopolymer Blends and Diblock Copolymers". Journal of Applied Crystallography 30, nr 5 (1.10.1997): 696–701. http://dx.doi.org/10.1107/s0021889897001404.

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Thermal composition fluctuations in a homogeneous binary polymer blend and in a diblock copolymer were measured by small-angle neutron scattering as a function of temperature and pressure. The experimental data were analyzed with theoretical expressions, including the important effect of thermal fluctuations. Phase boundaries, the Flory–Huggins interaction parameter and the Ginzburg number were obtained. The packing of the molecules changes with pressure. Therefore, the degree of thermal fluctuation as a function of packing and temperature was studied. While in polymer blends packing leads, in some respects, to a universal behaviour, such behaviour is not found in diblock copolymers. It is shown that the Ginzburg number decreases with pressure sensitively in blends, while it is constant in diblock copolymers. The Ginzburg number is an estimation of the transition between the universality classes of the `mean-field' approximation and the three-dimensional Ising model. The phase boundaries in blends increase with pressure, while the phase boundary of the studied block copolymer shows an unusual shape: with increasing pressure it first decreases and then increases. Its origin is an increase of the entropic and of the enthalpic parts, respectively, of the Flory–Huggins interaction parameter.
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Boufflet, Pierre, Sebastian Wood, Jessica Wade, Zhuping Fei, Ji-Seon Kim i Martin Heeney. "Comparing blends and blocks: Synthesis of partially fluorinated diblock polythiophene copolymers to investigate the thermal stability of optical and morphological properties". Beilstein Journal of Organic Chemistry 12 (10.10.2016): 2150–63. http://dx.doi.org/10.3762/bjoc.12.205.

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The microstructure of the active blend layer has been shown to be a critically important factor in the performance of organic solar devices. Block copolymers provide a potentially interesting avenue for controlling this active layer microstructure in solar cell blends. Here we explore the impact of backbone fluorination in block copolymers of poly(3-octyl-4-fluorothiophene)s and poly(3-octylthiophene) (F-P3OT-b-P3OT). Two block co-polymers with varying block lengths were prepared via sequential monomer addition under Kumada catalyst transfer polymerisation (KCTP) conditions. We compare the behavior of the block copolymer to that of the corresponding homopolymer blends. In both types of system, we find the fluorinated segments tend to dominate the UV–visible absorption and molecular vibrational spectral features, as well as the thermal behavior. In the block copolymer case, non-fluorinated segments appear to slightly frustrate the aggregation of the more fluorinated block. However, in situ temperature dependent Raman spectroscopy shows that the intramolecular order is more thermally stable in the block copolymer than in the corresponding blend, suggesting that such materials may be interesting for enhanced thermal stability of organic photovoltaic active layers based on similar systems.
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Poulopoulou, Nikki, Nejib Kasmi, Maria Siampani, Zoi Terzopoulou, Dimitrios Bikiaris, Dimitris Achilias, Dimitrios Papageorgiou i George Papageorgiou. "Exploring Next-Generation Engineering Bioplastics: Poly(alkylene furanoate)/Poly(alkylene terephthalate) (PAF/PAT) Blends". Polymers 11, nr 3 (23.03.2019): 556. http://dx.doi.org/10.3390/polym11030556.

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Polymers from renewable resources and especially strong engineering partially aromatic biobased polyesters are of special importance for the evolution of bioeconomy. The fabrication of polymer blends is a creative method for the production of tailor-made materials for advanced applications that are able to combine functionalities from both components. In this study, poly(alkylene furanoate)/poly(alkylene terephthalate) blends with different compositions were prepared by solution blending in a mixture of trifluoroacetic acid and chloroform. Three different types of blends were initially prepared, namely, poly(ethylene furanoate)/poly(ethylene terephthalate) (PEF/PET), poly(propylene furanoate)/poly(propylene terephthalate) (PPF/PPT), and poly(1,4-cyclohenedimethylene furanoate)/poly(1,4-cycloxehane terephthalate) (PCHDMF/PCHDMT). These blends’ miscibility characteristics were evaluated by examining the glass transition temperature of each blend. Moreover, reactive blending was utilized for the enhancement of miscibility and dynamic homogeneity and the formation of copolymers through transesterification reactions at high temperatures. PEF–PET and PPF–PPT blends formed a copolymer at relatively low reactive blending times. Finally, poly(ethylene terephthalate-co-ethylene furanoate) (PETF) random copolymers were successfully introduced as compatibilizers for the PEF/PET immiscible blends, which resulted in enhanced miscibility.
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Rozprawy doktorskie na temat "Copolymers and blends"

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Camiruaga, Elisa M. Elexpuru. "Miscibility studies of polymer blends involving acrylonitrile copolymers". Thesis, Heriot-Watt University, 1990. http://hdl.handle.net/10399/883.

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Wang, Haipeng 1968. "Characterisation of some dendritic polymers, copolymers, blends and nanocomposites". Monash University, School of Physics and Materials Engineering, 2002. http://arrow.monash.edu.au/hdl/1959.1/8420.

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Arnold, Cynthia A. "Structure-property behavior of polyimide homopolymers, copolymers, and blends". Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-09162005-115012/.

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Ehtaiatkar, Fatemeh. "Structure - property relationship of block copolymers and their blends". Thesis, Brunel University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293177.

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Sagoo, P. S. "Vapour transport in natural rubber blends and graft copolymers". Thesis, Imperial College London, 1985. http://hdl.handle.net/10044/1/37842.

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Zhou, Tingting. "Mechanical Analysis of Polycarbonate/Polysiloxane Block Copolymers and Blends". Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/26869.

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Polydimethylsiloxane (PDMS) can be used to react with polycarbonate (PC) to generate PC-PDMS multiblock copolymers and PC/PC-PDMS-PC triblock blends to overcome the notch sensitivity of PC while maintaining its transparency. It was found in this study that PDMS can act as a rubber particle to absorb energy and promote multicrazing. As a result, the incorporation of PDMS can increase PC's toughness. Meanwhile, high optical clarity can be observed even at 62 wt% PDMS in the multiblock copolymers with uniform morphology. However, PC/PC-PDMS-PC triblock blends damage PC's transparency and become opaque due to the phase separation. Furthermore, compared to compression molding, injection molding introduces shear due to the decrease of the area at the nozzle, which leads to the orientation of polymer chains and, subsequently, better properties of specimens.
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Minick, Jill Suzanne. "Microstructural analysis of polyethylenes and their blends and copolymers". Case Western Reserve University School of Graduate Studies / OhioLINK, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=case1058204252.

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Chen, Quan. "Component Dynamics in Miscible Polymer Blends and Block Copolymers". 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142180.

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Cheung, Zhuo-Lin. "Crystallization-driven surface segregation processes for polymer blends and copolymers /". View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CENG%202005%20CHEUNG.

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Ferrari, Federico. "Synthesis of Metal-Binding Ligand-Containing Copolymers, Nanoparticles and Blends". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19186/.

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In this thesis we developed three copper-containing systems. Copper shows intriguing abilities in photocatalysis, however, one of the major limitations of many copper complexes is that photochemical properties might be quenched in solution caused by π-interactions between solvent and solute, due to Jahn-Teller distortion in the excited state. As such, we herein seek to synthesise copper heteroleptic complexes that will subsequently be nanoprecipitated with a polymer. This will allow the polymer to encase the complex and prevent the solvent-induced quenching. Subsequently, the preparation of blends of polymer with the aforementioned copper complexes, at different weight ratios is sought. The preparation of the blend is particularly interesting as the catalytic properties are anticipated to be inferior on account of the low surface area. However, owing to the polymer matrix better, mechanical properties are anticipated. The blends can combine the mechanical properties of the polymer and the luminescence of the complex, with the advantage that the polymer matrix can also prevent quenching from oxygen. As final task, we developed a copper-containing monomer. The synthesis of a monomer that contains copper and can be excited under ultraviolet (UV) light is particularly interesting.
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Książki na temat "Copolymers and blends"

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Nishio, Yoshiyuki, Yoshikuni Teramoto, Ryosuke Kusumi, Kazuki Sugimura i Yoshitaka Aranishi. Blends and Graft Copolymers of Cellulosics. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-55321-4.

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Polymer thermodynamics: Blends, copolymers and reversible polymerization. Boca Raton: Taylor & Francis, 2011.

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Saini, Parveen, red. Fundamentals of Conjugated Polymer Blends, Copolymers and Composites. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119137160.

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Stoĭko, Fakirov, red. Handbook of thermoplastic polyesters: Homopolymers, copolymers, blends, and composites. Weinheim: Wiley-VCH, 2002.

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Avalos, F. Effect of ethylene - propylene copolymers and terpolymers on morphology and compatability on blends of both homopolymers. London: Institute of Metals, 1990.

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Ritvirulh, C. Morphology and properties of block copolymer-homopolymer blends. Manchester: UMIST, 1995.

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Lakshmi, Sharma. Investigations into blends of poly(3-hydroxybutyrate) and its copolymer. Birmingham: University of Birmingham, 1998.

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Karger-Kocsis, J. Polypropylene Structure, Blends and Composites: Volume 2 Copolymers and Blends. Springer Netherlands, 2012.

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Karger-Kocsis, J. Polypropylene Structure, Blends and Composites: Volume 2 Copolymers and Blends. Springer London, Limited, 2012.

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Sharma, Kal Renganathan. Polymer Thermodynamics: Blends, Copolymers and Reversible Polymerization. Taylor & Francis Group, 2017.

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Części książek na temat "Copolymers and blends"

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Chandrasekhar, Prasanna. "“Composites” (Blends) and Copolymers". W Conducting Polymers, Fundamentals and Applications, 253–74. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5245-1_10.

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White, James L., i David D. Choi. "Polyolefin Copolymers and Blends". W Polyolefins, 107–20. München: Carl Hanser Verlag GmbH & Co. KG, 2004. http://dx.doi.org/10.3139/9783446413030.006.

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Utracki, L. A. "Styrenics: polystyrene and styrene copolymers". W Commercial Polymer Blends, 139–93. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5789-0_10.

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Hurtrez, G., D. J. Wilson i G. Riess. "Synthesis of Block and Graft Copolymers". W Polymer Blends and Mixtures, 149–72. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5101-3_8.

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Meier, Dale J. "Block Copolymers Morphological and Physical Properties". W Polymer Blends and Mixtures, 173–94. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5101-3_9.

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Galli, P., J. C. Haylock i T. Simonazzi. "Manufacturing and properties of polypropylene copolymers". W Polypropylene Structure, blends and composites, 1–24. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0521-7_1.

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Wilson, D. J., G. Hurtrez i G. Riess. "Colloidal Behaviour and Surface Activity of Block Copolymers". W Polymer Blends and Mixtures, 195–215. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5101-3_10.

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Covas, Jose A., Luiz Antonio Pessan, Ana V. Machado i Nelson M. Larocca. "Polymer Blend Compatibilization by Copolymers and Functional Polymers". W Encyclopedia of Polymer Blends, 315–56. Weinheim, Germany: Wiley-VCH Verlag & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527805242.ch7.

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Krishnaswamy, Rajendra K., i Donald G. Baird. "Fibers from Polymer Blends and Copolymers". W Structure Formation in Polymeric Fibers, redaktor David R. Salem, 397–424. München: Carl Hanser Verlag GmbH & Co. KG, 2001. http://dx.doi.org/10.3139/9783446456808.011.

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Monasse, B., i J. M. Haudin. "Molecular structure of polypropylene homo- and copolymers". W Polypropylene Structure, blends and composites, 3–30. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0567-5_1.

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Streszczenia konferencji na temat "Copolymers and blends"

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Brown, D., A. Natansohn, P. Rochon i S. Xie. "Optically Induced Birefringence in Copolymers and Blends Containing Azobenzene Groups". W Organic Thin Films for Photonic Applications. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.thd.3.

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MASPOCH, M. LI, O. O. SANTANA, P. PAGÉS, J. PÉREZ-FOLCH, J. MAS, A. VIDAURRE, J. M. MESEGUER, M. MONLEON i J. L. GOMEZ. "COMPATIBILITY AND PROPERTIES OF BLENDS OF POLYCARBONATE AND ACRYLONITRILE-BUTADIENE-STYRENE COPOLYMERS". W Proceedings of the Fifth International Workshop on Non-Crystalline Solids. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814447225_0083.

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Berkovic, Garry, i Rami Cohen. "Creation of Strong Second Order Nonlinearity in Polymers by Asymmetric Injection of Electrical Charges". W Organic Thin Films for Photonic Applications. Washington, D.C.: Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wd.9.

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It is well known that strong second order nonlinearity can be induced in polymer/dye systems (blends or copolymers) by the poling technique. Application of a strong electrostatic field at elevated temperature causes partial orientational alignment of the dipolar dye molecules, leading to asymmetry nonlinearity along the direction of the applied field.
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Audorff, Hubert, Roland Walker, Lothar Kador i Hans-Werner Schmidt. "Blends of azobenzene-containing diblock copolymers and molecular glasses for holographic data storage". W Optical Data Storage 2010, redaktorzy Susanna Orlic i Ryuichi Katayama. SPIE, 2010. http://dx.doi.org/10.1117/12.858191.

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Alba, Carlos, David Pelaez i Lucia Cabo. "High-Temperature Metallized Polymer Film Capacitors Based on Blends of Polypropylene and Cyclic Olefin Copolymers". W 2020 IEEE 3rd International Conference on Dielectrics (ICD). IEEE, 2020. http://dx.doi.org/10.1109/icd46958.2020.9342006.

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Huang, Wu-Song, Ranee W. Kwong, Wayne M. Moreau, Robert Lang, David R. Medeiros, Karen E. Petrillo, Arpan P. Mahorowala i in. "Applicaton of blends and side chain Si-O copolymers as high-etch-resistant sub-100-nm e-beam resists". W SPIE's 27th Annual International Symposium on Microlithography, redaktor Theodore H. Fedynyshyn. SPIE, 2002. http://dx.doi.org/10.1117/12.474242.

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Holzworth, Kristin, Gregory Williams, Bedri Arman, Zhibin Guan, Gaurav Arya i Sia Nemat-Nasser. "Polyurea With Hybrid Polymer Grafted Nanoparticles: A Parametric Study". W ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88395.

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The basis of this research is to mitigate shock through material design. In this work, we seek to develop an understanding of parametric variations in polyurea-based nano-composite materials through experimental characterization and computational modeling. Blast-mitigating applications often utilize polyurea due to its excellent thermo-mechanical properties. Polyurea is a microphase-separated segmented block copolymer formed by the rapid reaction of an isocyanate component and an amine component. Block copolymers exhibit unique properties as a result of their phase-separated morphology, which restricts dissimilar block components to microscopic length scales. The soft segments form a continuous matrix reinforced by the hard segments that are randomly dispersed as microdomains. The physical properties of the separate phases influence the overall properties of the polyurea. While polyurea offers a useful starting point, control over crystallite size and morphology is limited. For compositing, the blending approach allows superb control of particle size, shape, and density; however, the hard/soft interface is typically weak for simple blends. Here, we overcome this issue by developing hybrid polymer grafted nanoparticles, which have adjustable exposed functionality to control both their spatial distribution and interface. These nano-particles have tethered polymer chains that can interact with their surrounding environment and provide a method to control well defined and enhanced nano-composites. This approach allows us to adjust a number of variables related to the hybrid polymer grafted nanoparticles including: core size and shape, core material, polymer chain length, polymer chain density, and monomer type. In this work, we embark on a parametric study focusing on the effect of silica nanoparticle size, polymer chain length, and polymer chain density. Preliminary results from experimental characterization and computational modeling indicate that the dynamic mechanical properties of the material can be significantly altered through such parametric modifications. These efforts are part of an ongoing initiative to develop elastomeric composites with optimally designed compositions and characteristics to manage blast-induced stress-wave energy.
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Kodama, Hiroya. "Mean-field studies of block copolymer/homopolymers blends". W Third tohwa university international conference on statistical physics. AIP, 2000. http://dx.doi.org/10.1063/1.1291561.

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Brogan, J. A., C. C. Berndt, A. Claudon i C. Coddet. "The Mechanical Properties of Combustion-Sprayed Polymers and Blends". W ITSC 1996, redaktor C. C. Berndt. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.itsc1996p0221.

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Abstract The mechanical properties of EMAA copolymer are dependent upon the thermal spray processing parameters. The parameters determine coating temperatures which, in turn, affects the microstructure. If the deposition temperature is too low, (104 °C for PFl 13 and 160 °C for PFl 11) coatings have low strengths and low energy to break values. Increased coating temperatures allow the particles to fully coalesce resulting in maximized strength and elongation to break. However, at 271 °C, PFl 11 had visible porosity which decreased both strength and elastic modulus. Pigment acts as reinforcement in the sense that the modulus increased but the elongation to break decreased, thus reducing the energy to break. Water quenching reduces the elastic modulus and yield strength, but increases the elongation to break for both EMAA formulations. The mechanical properties of post consumer commingled plastic and PCCP / EMMA blends improved if the recycled plastic was pre-processed by melt-compounding. Melt compounding increased the strength and toughness by improving the compatibility among the various polymer constituents. The addition of PCCP increases the modulus and yield strength of ethylene methaciylic acid copolymer.
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Poindl, M., i C. Bonten. "Morphological studies on block copolymer modified PA 6 blends". W PROCEEDINGS OF PPS-29: The 29th International Conference of the Polymer Processing Society - Conference Papers. American Institute of Physics, 2014. http://dx.doi.org/10.1063/1.4873864.

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Raporty organizacyjne na temat "Copolymers and blends"

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Nir, Moira M., i Robert E. Cohen. Blends of Crystallizable Polybutadiene Isomers: Compatibilization by Addition of Amorphous Diblock Copolymer. Fort Belvoir, VA: Defense Technical Information Center, lipiec 1991. http://dx.doi.org/10.21236/ada238879.

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Nir, Moira M., i Robert E. Cohen. Compatibilization of Blends of Crystallizable Polybutadiene Isomers by Precipitation and by Addition of Amorphous Diblock Copolymer. Fort Belvoir, VA: Defense Technical Information Center, luty 1991. http://dx.doi.org/10.21236/ada232071.

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Cazzaniga, L. A., i R. E. Cohen. Toward a Block-Copolymer-Emulsified, Tough Blend of Isotactic Polystyrene and Polybutadiene: HIiPS. Fort Belvoir, VA: Defense Technical Information Center, luty 1991. http://dx.doi.org/10.21236/ada231934.

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[Phase transition in polymer blends and structure of ionomers and copolymers]. Office of Scientific and Technical Information (OSTI), styczeń 1993. http://dx.doi.org/10.2172/6342922.

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[Phase transition in polymer blends and structure of ionomers and copolymers]. [Annual report, April 1, 1989--June 30, 1993]. Office of Scientific and Technical Information (OSTI), lipiec 1993. http://dx.doi.org/10.2172/10161177.

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