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Статті в журналах з теми "Poly(tetramethylene oxide)"

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Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 29 січня 2023

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1

Law, Robert V., and Yuji Sasanuma. "Conformational Characteristics of Poly(tetramethylene oxide)." Macromolecules 31, no. 7 (April 1998): 2335–42. http://dx.doi.org/10.1021/ma971234e.

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2

Liesen, Nicholas T., Meng Wang, Mehrnoosh Taghavimehr, Jae Sang Lee, Reza Montazami, Lisa M. Hall, and Matthew D. Green. "The influence of spacer composition on thermomechanical properties, crystallinity, and morphology in ionene segmented copolymers." Soft Matter 17, no. 22 (2021): 5508–23. http://dx.doi.org/10.1039/d1sm00501d.

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Анотація:

A series of segmented ammonium ionenes with varying weight fractions of 2000 g mol⁻¹ poly(ethylene glycol) or poly(tetramethylene oxide) soft segments were synthesized and analogous systems were modeled using coarse-grained simulations.

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3

David, Geta, and Bogdan C. Simionescu. "Poly[( N-Acylimino)ethylene] Derivatives for Advanced Materials." High Performance Polymers 21, no. 5 (September 8, 2009): 596–607. http://dx.doi.org/10.1177/0954008309339932.

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New segmented polyurethanes containing soft and hard segments of different polarity and hydrophilicity, based on 4,4′-methylenebis-(cyclohexyl isocyanate, 4,4′-methylenebis-(phenyl isocyanate) and poly(tetramethylene oxide) or poly(ethylene oxide) were prepared including poly[( N-acylimino) ethylene] sequences as a chain extender. They were comparatively characterized by spectral, thermal and mechanical techniques. Some preliminary investigations on their nanocomposites with montmorillonite as an inorganic component are presented.

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4

Navarro, R., A. Rubio Hernández-Sampelayo, E. Adem, and A. Marcos-Fernández. "Effect of electron beam irradiation on the properties of poly(tetramethylene oxide) and a poly(tetramethylene oxide)-based polyurethane." Radiation Physics and Chemistry 174 (September 2020): 108905. http://dx.doi.org/10.1016/j.radphyschem.2020.108905.

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5

Margaritis, A. G., and N. K. Kalfoglou. "Compatibility of poly(vinyl chloride) with polyalkyleneoxides. II. Poly(propylene oxide) and poly(tetramethylene oxide)." Journal of Polymer Science Part B: Polymer Physics 27, no. 8 (July 1989): 1767–79. http://dx.doi.org/10.1002/polb.1989.090270813.

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6

Rochery, M., I. Vroman, and C. Campagne. "Coating of Polyester with Poly(dimethylsiloxane)- and Poly(tetramethylene oxide)-based Polyurethane." Journal of Industrial Textiles 35, no. 3 (January 2006): 227–38. http://dx.doi.org/10.1177/1528083706055755.

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7

Lee, Daewon, Seung-Heon Lee, Sangcheol Kim, Kookheon Char, Jae Hyung Park, and Yoo Han Bae. "Micro-phase-separation behavior of amphiphilic polyurethanes involving poly(ethylene oxide) and poly(tetramethylene oxide)." Journal of Polymer Science Part B: Polymer Physics 41, no. 20 (September 3, 2003): 2365–74. http://dx.doi.org/10.1002/polb.10504.

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8

Guang, Li, and R. J. Gaymans. "Polyesteramides with mixtures of poly(tetramethylene oxide) and 1,5-pentanediol." Polymer 38, no. 19 (January 1997): 4891–96. http://dx.doi.org/10.1016/s0032-3861(97)00016-5.

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9

Karimzadeh, Maryam, Elahesadat Eslampanah-Seyyedi, and Hossein Behniafar. "Poly(tetramethylene oxide)-coated silica nanoparticles incorporated into poly(4,4′-oxydiphenylene-pyromellitimide) matrix." Materials and Manufacturing Processes 33, no. 10 (August 29, 2017): 1093–99. http://dx.doi.org/10.1080/10426914.2017.1364856.

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10

Hyung Park, Jae, and You Han Bae. "Hydrogels based on poly(ethylene oxide) and poly(tetramethylene oxide) or poly(dimethyl siloxane). III.In vivo biocompatibility and biostability." Journal of Biomedical Materials Research 64A, no. 2 (January 9, 2003): 309–19. http://dx.doi.org/10.1002/jbm.a.10424.

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11

Kamitakahara, Masanobu, Masakazu Kawashita, Noboru Miyata, Tadashi Kokubo, and Takashi Nakamura. "Preparation of bioactive flexible poly(tetramethylene oxide) (PTMO)–CaO–Ta2O5 hybrids." Journal of Materials Science: Materials in Medicine 18, no. 6 (February 1, 2007): 1117–24. http://dx.doi.org/10.1007/s10856-007-0147-9.

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12

Tashiro, Kohji, Masanao Hiramatsu, Tadaoki Ii, Masamichi Kobayashi, and Hiroyuki Tadokoro. "Stress-induced crystalline phase transition in block copolymers of poly(tetramethylene terephthalate) and poly(tetramethylene oxide). II Phase transition and inhomogeneous deformation." Sen'i Gakkaishi 42, no. 12 (1986): T659—T664. http://dx.doi.org/10.2115/fiber.42.12_t659.

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13

Park, Jae Hyung, and You Han Bae. "Hydrogels based on poly(ethylene oxide) and poly(tetramethylene oxide) or poly(dimethyl siloxane). II. Physical properties and bacterial adhesion." Journal of Applied Polymer Science 89, no. 6 (May 27, 2003): 1505–14. http://dx.doi.org/10.1002/app.12217.

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14

FERREIRA, B., F. MULLERPLATHE, A. BERNARDES, and W. DEALMEIDA. "A comparison of Li+ transport in dimethoxyethane, poly(ethylene oxide) and poly(tetramethylene oxide) by molecular dynamics simulations." Solid State Ionics 147, no. 3-4 (April 2002): 361–66. http://dx.doi.org/10.1016/s0167-2738(02)00055-3.

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15

Trick, G. S., and J. M. Ryan. "The crystallization of high molecular weight poly-(tetramethylene oxide) and related polymers." Journal of Polymer Science Part C: Polymer Symposia 18, no. 1 (March 7, 2007): 93–103. http://dx.doi.org/10.1002/polc.5070180109.

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16

Storozhuk, I. P., N. G. Pavlyukovich, A. L. Kotyukova, and A. V. Polezhaev. "Application of Polybutadiene–Poly(Tetramethylene Oxide) Block Copolymers to Modify Adhesive Compositions." Polymer Science, Series D 14, no. 4 (October 2021): 504–7. http://dx.doi.org/10.1134/s1995421221040237.

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17

IKAKE, Hiroki, Wakako HASHIMOTO, Tamiko OBARA, Kimio KURITA, and Shoichiro YANO. "Photochromic Properties and Microstructures of Poly (tetramethylene oxide)/Tungsten Trioxide Hybrid Materials." KOBUNSHI RONBUNSHU 57, no. 6 (2000): 376–82. http://dx.doi.org/10.1295/koron.57.376.

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18

Wen, J., B. Dhandapani, S. T. Oyama, and G. L. Wilkes. "Preparation of Highly Porous Silica Gel from Poly(tetramethylene oxide)/Silica Hybrids." Chemistry of Materials 9, no. 9 (September 1997): 1968–71. http://dx.doi.org/10.1021/cm960503x.

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19

Feng, Daan, Garth L. Wilkes, Bin Lee, and James E. McGrath. "Structure-property behaviour of segmented poly (tetramethylene oxide)-based bipyridinium ionene elastomers." Polymer 33, no. 3 (January 1992): 526–35. http://dx.doi.org/10.1016/0032-3861(92)90729-g.

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20

Lee, Han Sup, Nam Woong Lee, Dae Woo Ihm, and Kwang Hyun Paik. "Segmental Orientation Behavior of Poly(butyleneterephthalate-co-tetramethylene oxide) upon Uniaxial Deformation." Macromolecules 27, no. 15 (July 1994): 4364–70. http://dx.doi.org/10.1021/ma00093a043.

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21

Wang, Bijia, Ru Ren, and Zhize Chen. "Synthesis of cross-linked polylactide–poly(tetramethylene oxide) copolymers with enhanced toughness." Polymer Bulletin 76, no. 3 (July 24, 2018): 1531–45. http://dx.doi.org/10.1007/s00289-018-2452-5.

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22

OKAMURA, HIROKAZU, KAORI SUZUKI, TAKESHI MORI, KEIJI MINAGAWA, SEIZO MASUDA, and MASAMI TANAKA. "CHAIN BEHAVIOR IN MODEL HOMOGENEOUS ER FLUIDS DEPENDING ON TEMPERATURE." International Journal of Modern Physics B 16, no. 17n18 (July 20, 2002): 2385–91. http://dx.doi.org/10.1142/s0217979202012402.

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Анотація:

Water-soluble urethane-modified polyethers were prepared by addition of poly(ethylene oxide)-co-poly(propylene oxide) and aromatic isocyanate compounds. These polymers were found to dissolve in water at lower temperature and separate from solution upon heating. The temperature showing this unusual solubility change is called lower critical solution temperature (LCST). These chemical structures of thermo-responsive polymers were similar to those of urethane-modified ER active polymers containing poly(tetramethylene oxide) and aromatic urethane moiety. The thermo-responsive and ER polymers may have various intra- and intermolecular interactions through the urethane moiety. It is considered that both thermo-responsivility and ER effect are dependent on the conformational stability of the polymers under different conditions possibly related to these stimuli-responsivility through the molecular interactions. In order to clarify molecular motion of thermo-responsive polymers near the LCST, 1 H-NMR spin-lattice relaxation time ( T 1) was measured in D 2 O . The result indicated that hydrophobic interaction of terminal urethane moiety would strongly affect the LCST behavior.

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23

Husken, Debby, Jan Feijen, and Reinoud J. Gaymans. "Synthesis and properties of segmented block copolymers based on mixtures of poly(ethylene oxide) and poly(tetramethylene oxide) segments." European Polymer Journal 44, no. 1 (January 2008): 130–43. http://dx.doi.org/10.1016/j.eurpolymj.2007.10.016.

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24

Liu, Zhen, Chang Fa Xiao, and Yu Feng Zhang. "Study on Microphase Separation of Polyether-Urethane Block Copolymers." Advanced Materials Research 282-283 (July 2011): 557–60. http://dx.doi.org/10.4028/www.scientific.net/amr.282-283.557.

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Анотація:

A set of polyether-urethane block copolymers were prepared that poly (tetramethylene oxide) PTMO was regarded as soft segment, 4,4'-methylenebis(phenyl isocyanate)(MDI) and m-diphenylamine (MDM) was regarded as hard segment in this article. The microphase separation of polyether-urethane block copolymer was investigated by using infrared spectroscopy(FTIR), differential scanning calorimetry(DSC), small-angle X-ray scattering(SAXS),there obtained that there are two phases structure in polyether-urethane block copolymers and degree of phase separation decrease with increasing hard segment weight content.

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25

Schmidt, Angelika, Wiebren S. Veeman, Victor M. Litvinov, and Wouter Gabriëlse. "NMR Investigations of In-Situ Stretched Block Copolymers of Poly(butylene terephthalate) and Poly(tetramethylene oxide)." Macromolecules 31, no. 5 (March 1998): 1652–60. http://dx.doi.org/10.1021/ma9714676.

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26

Paszkiewicz, Sandra, Anna Szymczyk, Daria Pawlikowska, Izabela Irska, Iman Taraghi, Ryszard Pilawka, Jiali Gu, Xiaohong Li, Yingfeng Tu, and Elzbieta Piesowicz. "Synthesis and characterization of poly(ethylene terephthalate-co-1,4-cyclohexanedimethylene terephtlatate)-block-poly(tetramethylene oxide) copolymers." RSC Advances 7, no. 66 (2017): 41745–54. http://dx.doi.org/10.1039/c7ra07172h.

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Анотація:

A series of PETG-block-PTMO copolymers were synthesized by means of a polycondensation process and characterized using¹H nuclear magnetic resonance and Fourier transform infrared spectroscopy, that confirm the successful synthesis of the material.

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27

Saint-Loup, René, Jean-Jacques Robin, and Bernard Boutevin. "Synthesis of Poly(ethylene terephthalate)-block-Poly(tetramethylene oxide) Copolymer by Direct Polyesterification of Reactive Oligomers." Macromolecular Chemistry and Physics 204, no. 7 (May 2003): 970–82. http://dx.doi.org/10.1002/macp.200390072.

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28

Jovanovic, Danijela, Marija Nikolic, and Jasna Djonlagic. "Synthesis and characterization of biodegradable aliphatic copolyesters with hydrophilic soft segments." Journal of the Serbian Chemical Society 69, no. 12 (2004): 1013–28. http://dx.doi.org/10.2298/jsc0412013j.

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segmented poly(ester-ether)s based on poly(butylene succinate) and two different types of polyethers were investigated. The poly(ester-ether)s were synthesized by transesterification reaction of dimethyl succinate 1,4-butanediol and poly(ethylene oxide) (PEO, Mn = 1000 g/mol) in the first series, and poly(tetramethylene oxide) (PTMO,Mn = 1000 g/mol) in the second. The mass fraction of soft segments was varied between 10 and 50 mass. %. The effect of the introduction of two different polyether soft segments on the structure, thermal and rheological properties were investigated. The composition of the poly(ester-ether)s, determined from their 1H-NMR spectra showed that incorporation of soft polyether segments was successfully performed by the transesterification reaction in bulk. The molecular weight was estimated from solution viscosity measurements and complex dynamic viscosities. The thermal properties investigated by DSC indicated that the presence of soft segments lowers the melting and crystallization temperature of the hard phase, as well as the degree of crystallinity. Dynamical mechanical analysis was used to investigate the influence of composition on the rheological behavior of the segmented poly(ester-ether)s. The results obtained from an enzymatic degradation test performed on some of the synthesized polymers showed that the biodegradability is enhanced with increasing hydrophilicity.

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29

Shilov, Valeriy, Volodymyr Sperkach, Yaroslav Sperkach, and Anatoliy Strybulevych. "Acoustic Relaxation of Liquid Poly(tetramethylene oxide) with Hydroxyl and Acyl Terminal Groups." Polymer Journal 34, no. 8 (August 2002): 565–74. http://dx.doi.org/10.1295/polymj.34.565.

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30

Huang, Hao-Hsin, Garth L. Wilkes, and James G. Carlson. "Structure-property behaviour of hybrid materials incorporating tetraethoxysilane with multifunctional poly(tetramethylene oxide)." Polymer 30, no. 11 (November 1989): 2001–12. http://dx.doi.org/10.1016/0032-3861(89)90286-3.

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31

Williams, Sharlene R., Wenqin Wang, Karen I. Winey, and Timothy E. Long. "Synthesis and Morphology of Segmented Poly(tetramethylene oxide)-Based Polyurethanes Containing Phosphonium Salts." Macromolecules 41, no. 23 (December 9, 2008): 9072–79. http://dx.doi.org/10.1021/ma801942f.

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32

Grasel, Timothy G., William G. Pitt, Kedar D. Murthy, Timothy J. McCoy, and Stuart L. Cooper. "Properties of extruded poly(tetramethylene oxide) Polyurethane block copolymers for blood-contacting applications." Biomaterials 8, no. 5 (September 1987): 329–40. http://dx.doi.org/10.1016/0142-9612(87)90002-0.

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33

Pepic, Dragana, Marija S. Nikolic, and Jasna Djonlagic. "Synthesis and characterization of biodegradable aliphatic copolyesters with poly(tetramethylene oxide) soft segments." Journal of Applied Polymer Science 106, no. 3 (2007): 1777–86. http://dx.doi.org/10.1002/app.26860.

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34

Park, Jae Hyung, and You Han Bae. "Hydrogels based on poly(ethylene oxide) and poly(tetramethylene oxide) or poly(dimethyl siloxane): synthesis, characterization, in vitro protein adsorption and platelet adhesion." Biomaterials 23, no. 8 (April 2002): 1797–808. http://dx.doi.org/10.1016/s0142-9612(01)00306-4.

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35

Paszkiewicz, Sandra, Iwona Pawelec, Anna Szymczyk, and Zbigniew Rosłaniec. "Thermoplastic elastomers containing 2D nanofillers: montmorillonite, graphene nanoplatelets and oxidized graphene platelets." Polish Journal of Chemical Technology 17, no. 4 (December 1, 2015): 74–81. http://dx.doi.org/10.1515/pjct-2015-0071.

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Abstract This paper presents a comparative study on which type of platelets nanofiller, organic or inorganic, will affect the properties of thermoplastic elastomer matrix in the stronger manner. Therefore, poly(trimethylene terephthalate-block-poly(tetramethylene oxide) copolymer (PTT-PTMO) based nanocomposites with 0.5 wt.% of clay (MMT), graphene nanoplatelets (GNP) and graphene oxide (GO) have been prepared by in situ polymerization. The structure of the nanocomposites was characterized by transmission electron microscopy (TEM) in order to present good dispersion without large aggregates. It was indicated that PTT-PTMO/GNP composite shows the highest crystallization temperature. Unlike the addition of GNP and GO, the introduction of MMT does not have great effect on the glass transition temperature of PTMO-rich soft phase. An addition of all three types of nanoplatelets in the nanocomposites caused the enhancement in tensile modulus and yield stress. Additionally, the cyclic tensile tests showed that prepared nanocomposites have values of permanent set slightly higher than neat PTT-PTMO.

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36

Wang, Jian Hua, Shuen Liang, Chun Rong Tian, Xiu Li Zhao, and Xiao Yan Lin. "Study on Degradable Polyurethane Foams with Mixed PEG/PCL and PLA/PCL Soft Segments." Advanced Materials Research 518-523 (May 2012): 821–27. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.821.

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Анотація:

Through inclusion of different polymer chains with different properties into polyurethane matrix, such as poly(ethylene glycol) (PEG), poly(ε-caprolactone) (PCL), poly(lactic acid) (PLA), or poly(tetramethylene oxide) (PTMG), degradable polyurethane foams (PUFs) with different molecular structure were prepared. Influences of molecular structure on PUF materials’ performance were studied systematically. When PEG, PCL, PLA, and PTMG serve as soft segment, PUFs’ storage modulus and glass transition temperature (Tg) of PUFs decrease with following order: PLA>PCL>PEG>PTMG (flexibility of PUFs varies oppositely). And degradability decreases according to following order: PEG>PLA>PCL>PTMG. With increasing content of PEG or PLA chains in PU matrix, mechanical performance of PUFs decrease gradually, but remains on the same order with conventional non-degradable PUFs. Through control on the contents of different kinds of polymer chains in soft segments of PUFs, fairly good degradability can be achieved, at whilst their basic mechanical performance is well guaranteed.

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37

Tashiro, Kohji, Masanao Hiramatsu, Tadaoki Ii, Masamichi Kobayashi, and Hiroyuki Tadokoro. "Stress-induced crystalline phase transition in block copolymers of poly(tetramethylene terephthalate) and poly(tetramethylene oxide). I Dependence of transitional behavior on hard/soft segmental ratio." Sen'i Gakkaishi 42, no. 11 (1986): T597—T605. http://dx.doi.org/10.2115/fiber.42.11_t597.

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38

Huang, Weichun, Yingbo Wan, Jianying Chen, Qiaozhen Xu, Xiaohong Li, Xiaoming Yang, Yaowen Li, and Yingfeng Tu. "One pot synthesis and characterization of novel poly(ether ester) mutiblock copolymers containing poly(tetramethylene oxide) and poly(ethylene terephthalate)." Polym. Chem. 5, no. 3 (2014): 945–54. http://dx.doi.org/10.1039/c3py00932g.

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39

Kamitakahara, Masanobu, R. Shineha, Kawashita Masakazu, Noboru Miyata, Tadashi Kokubo, and Takashi Nakamura. "Flexible Poly(Tetramethylene Oxide) (PTMO)-TiO₂ Hybrid with Apatite-Forming Ability." Key Engineering Materials 240-242 (May 2003): 155–58. http://dx.doi.org/10.4028/www.scientific.net/kem.240-242.155.

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40

Slomkowski, Stanislaw, Mitchell A. Winnik, P. Furlong, and W. F. Reynolds. "Synthesis of low-polydispersity poly(tetramethylene oxide) using benzil and pyrene derivatives as initiators." Macromolecules 22, no. 2 (March 1989): 503–9. http://dx.doi.org/10.1021/ma00192a001.

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41

Ojha, Umaprasana, and Rudolf Faust. "Synthesis and Characterization of Thermoplastic Polyurethaneureas based on Polyisobutylene and Poly(tetramethylene oxide) Segments." Journal of Macromolecular Science, Part A 47, no. 3 (January 20, 2010): 186–91. http://dx.doi.org/10.1080/10601320903526741.

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42

Wei, Xinyu, Li Ren, Kristof Bagdi, Kasyap Seethamraju, and Rudolf Faust. "Morphology and Mechanical Properties of Thermoplastic Polyurethanes Containing Polyisobutylene/Poly(tetramethylene oxide) Mixed Segments." Journal of Macromolecular Science, Part A 52, no. 11 (September 29, 2015): 857–66. http://dx.doi.org/10.1080/10601325.2015.1080087.

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43

Castagna, Alicia M., Autchara Pangon, Gregory P. Dillon, and James Runt. "Effect of Thermal History on the Microstructure of a Poly(tetramethylene oxide)-Based Polyurea." Macromolecules 46, no. 16 (August 16, 2013): 6520–27. http://dx.doi.org/10.1021/ma400856w.

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44

Biemond, G. J. E., and Reinoud J. Gaymans. "Elastic properties of thermoplastic elastomers based on poly(tetramethylene oxide) and monodisperse amide segments." Journal of Materials Science 45, no. 1 (January 2010): 158–67. http://dx.doi.org/10.1007/s10853-009-3911-z.

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45

Thanganathan, Uma, Javier Parrondo, and B. Rambabu. "Nanocomposite hybrid membranes containing polyvinyl alcohol or poly(tetramethylene oxide) for fuel cell applications." Journal of Applied Electrochemistry 41, no. 5 (February 24, 2011): 617–22. http://dx.doi.org/10.1007/s10800-011-0270-7.

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46

WEN, J., B. DHANDAPANI, S. T. OYAMA, and G. L. WILKES. "ChemInform Abstract: Preparation of Highly Porous Silica Gel from Poly(tetramethylene oxide) /Silica Hybrids." ChemInform 28, no. 48 (August 2, 2010): no. http://dx.doi.org/10.1002/chin.199748013.

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47

Sano, Junta, and Shigeki Habaue. "Dual Temperature and Metal Salts-Responsive Interpenetrating Polymer Networks Composed of Poly (N-isopropylacrylamide) and Polyethylene Glycol." Polymers 13, no. 11 (May 27, 2021): 1750. http://dx.doi.org/10.3390/polym13111750.

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Novel interpenetrating polymer networks (IPNs) composed of poly(N-isopropylacrylamide) (poly-NIPAM) and polyethers—namely, polyethylene glycol (PEG) and poly(tetramethylene oxide)—were synthesized in the absence and presence of polysiloxane containing a silanol residue. Gelation was accomplished using end-capped polyethers with trimethoxysilyl moieties and proceeded through simultaneous radical gelation of NIPAM and condensation of the silyl groups to form siloxane linkages. Thus, a novel one-step method constructing an IPN structure was provided. The obtained IPNs showed a gentle temperature-responsive volume change in water owing to the constructed poly-NIPAM gel component. In addition, a specific color-change response to chemical stimuli, such as CuCl2 and AgNO3 in water, was observed only when both components of poly-NIPAM and PEG existed in a gel form. For example, a single network gel composed of poly-NIPAM or PEG was isolated as a pale blue hydrogel, whereas IPNs composed of poly-NIPAM and PEG components turned yellow after swelling in an aqueous CuCl2 solution (0.1 M, pale blue). Dual-responsive functionalities of the synthesized hydrogels to temperature and metal salts, along with volume and color changes, were demonstrated.

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48

Aleksandrovic, Vesna, and Jasna Djonlagic. "Synthesis and characterization of thermoplastic copolyester elastomers modified with fumaric moieties." Journal of the Serbian Chemical Society 66, no. 3 (2001): 139–52. http://dx.doi.org/10.2298/jsc0103139a.

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A series of poly(ether-ester)s derived from dimethyl terephthalate (DMT), dimethyl fumarate (DMF), 1,4-butandiol (BD) and poly(tetramethylene oxide) (PTMO,Mn = 1000 g/mol) was synthesized in a two stage process involving transesterification and polycondensation in the melt. The mole ratio of the starting components was selected to result in copolymers with a constant hard:soft segment wieght ratio (56:44). The amount of DMF was 10 mol %, referred to the total amount of the esters used. The synthesis was optimized in terms of both the concentration of catalyst, tetra-n-butyl-titanate, Ti(OBu)4 and thermal stabilizerN,N?-diphenyl-p-phenylenediamine, DPPD, as well as the temperature. The composition and structure of the synthesized poly(ether-ester)s were characterized by 1H-NMR. The number average molecular weights of the polymers calculated from the 1H-NMR spectra were compared with the corresponding values of the inherent viscosity (inh) inm-cresol and the complex dynamic viscosity (

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49

Rochery, Maryline, Isabelle Vroman, and Thanh My Lam. "Incorporation of Poly(Dimethylsiloxane) into Poly(Tetramethylene Oxide) Based Polyurethanes: The Effect of Synthesis Conditions on Polymer Properties." Journal of Macromolecular Science, Part A 40, no. 3 (January 4, 2003): 321–33. http://dx.doi.org/10.1081/ma-120018117.

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50

Huang, Yong, Junhong Liu, Aimin Zhang, and Tao Zhou. "Crystallization Behavior of Poly(Tetramethylene Oxide) Influenced by the Crystallization Condition of Poly(Butylene Succinate) in Their Copolymers." Journal of Wuhan University of Technology-Mater. Sci. Ed. 34, no. 2 (April 2019): 496–506. http://dx.doi.org/10.1007/s11595-019-2079-x.

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