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Dissertations / Theses on the topic 'COPOLYMER RESINS'

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Published: 11 September 2023

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1

Richards, Mark Ian. "Refined methods in solid (gel) phase peptide synthesis." Thesis, University of Wolverhampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343258.

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2

Araujo, Renata Bastos de. "Preparação e avaliação de resinas biocidas impregnadas com iodo a partir de resinas comerciais de estireno e divinilbenzeno." Universidade do Estado do Rio de Janeiro, 2013. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=5197.

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Neste trabalho, foram empregadas duas resinas comerciais de caráter fortemente básico. Ambas tendo como base copolímeros de estireno e divinilbenzeno (DVB), sendo que a VPOC 1950 contém em sua composição grupos quaternários de amônio do tipo 1, que apresentam três grupos metila e a VPOC 1960 grupos quaternários de amônio do tipo 2, que apresentam um grupo etanoíla e dois grupos metila. As resinas comerciais citadas foram escolhidas por apresentarem grande capacidade de troca iônica, estabilidade e grupos funcionais de interesse para a impregnação com iodo. As resinas foram impregnadas com iodo

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3

Abreu, Iury Körting de. "Estudos dos efeitos da adição de copolímeros em blocos em nanocompósitos de matriz epoxídica reforçados com nanoplateletes de grafeno e nanotubos de carbono." Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/1677.

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Made available in DSpace on 2016-12-08T17:19:26Z (GMT). No. of bitstreams: 1 Iury.pdf: 24951 bytes, checksum: 2940126ad384e071aa040115b3667855 (MD5) Previous issue date: 2015-02-19<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>O estado de dispersão das nanopartículas na matriz está diretamente ligado às propriedades físicas dos nanocompósitos. Assim técnicas que visam um estado de dispersão mais homogêneo das nanopartículas na matriz são constantemente estudadas. Funcionalização não covalente, ou física, é uma técnica que utiliza-se de interações Coulombianas e/ou barr

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4

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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5

Hudda, Laila B. "Origin of limiting conversion phenomenon in alkyd/acrylate graft copolymerization systems." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/10960.

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6

Stein, Jasmin. "Toughening of highly crosslinked epoxy resin systems." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/toughening-of-highly-crosslinked-epoxy-resin-systems(de1605b9-d14d-43f1-83a1-dc13a7530179).html.

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Highly crosslinked epoxy resin systems are essential in aerospace applications due to the high operating temperatures. Although highly crosslinked epoxy resins have the required glass transition temperature (Tg) for the application, they are inherently brittle and matrix toughness is improved by incorporation of a second phase. Previous studies have focused mostly on toughening of lightly crosslinked epoxy systems, whereas this study investigates toughening of a highly crosslinked epoxy resin system using thermoplastic toughners poly(ether sulfone) (PES) and a poly(methyl methacrylate)-b- poly

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7

Royston, Gareth John. "Modification of epoxy resins with block copolymers of poly(ethylene oxide) and poly(butylene oxide)." Thesis, University of Sheffield, 2007. http://etheses.whiterose.ac.uk/15156/.

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Block copolymer modified epoxy resins have generated significant interest since it was demonstrated that the combination could lead to nanostructured thermosets through self-assembly. In this work, samples of epoxy resin - formed by reaction of bisphenol-A diglycidyl ether (BADGE) and diethyltoulenediamine (DETDA) - and containing a range of copolymers composed of poly(ethylene oxide) (E) and poly(butylene oxide) (B), were prepared and characterized. Samples contained EB, EBE and BEB copolymers over a range of concentrations. Copolymers of low molecular weight and low B content were found not

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8

Miles, Andrew. "Copolymers of methacrylic acid and itaconic acid derivatives as thermally crosslinkable electron resists." Thesis, University of Stirling, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236050.

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9

Lascu, Claudia M. "Block Copolymers via Reverse Addition-Fragmentation Chain Transfer Polymerization as a Viable Resin for Packaging Coatings." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1428070054.

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10

Cheng, Jing. "Toward sub-10 nm lithographic processes: epoxy-based negative tone molecular resists and directed self-assembly (DSA) of high χ block copolymers". Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49113.

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It’s becoming more and more difficult to make smaller, denser, and faster computer chips. There’s an increasing demand to design new materials to be applied in current lithographic process to get higher patterning performance. In this work, the aqueous developable single molecule resists were introduced, synthesized and patterned. A new group of epoxide other than glycidyl ether, cyclohexene oxide was introduced to functionalize a molecular core and 15 nm resolution was obtained. The directed self-assembly (DSA) of block copolymers as an alternative lithographic technique has received growing

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11

OLIVEIRA, Leonardo François de. "SÍNTESE DE POLI (ÁCIDO LÁTICO-CO-ÁCIDO GLICÓLICO) ATRAVÉS DE POLICONDENSAÇÃO CATALISADA POR RESINA DE TROCA IÔNICA CONTENDO ÓXIDO DE ESTANHO COMO CO-CATALISADOR." Universidade Federal de Goiás, 2008. http://repositorio.bc.ufg.br/tede/handle/tde/1053.

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Made available in DSpace on 2014-07-29T15:12:47Z (GMT). No. of bitstreams: 1 dissertacao Leonardo Francois quimica.pdf: 194110 bytes, checksum: 750a31eb02f149c7536ac63de960592b (MD5) Previous issue date: 2008-11-27<br>In this study PLGA copolymers were synthesized with molecular weight above 10 kDa through direct polycondensation of L-lactic acid and glycolic acid monomers. Catalysts based on sulfonated styrenedivinylbenzene copolymer (SC) containing or not Sn2+ íons adsorbed as SnCl2.H2O colloidal particles from neutral solution or [SnCl3]- complex anions from acid solution were prepared. A

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12

Cho, Hosouk. "Chemical incorporation of polyhedral oligomeric silsesquioxane into thermoset matrices." Diss., Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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13

Penfold, Ben. "The optimisation of the structure and the synthesis of negative working electron beam resists based on copolymers of 2,4-dimethylstyrene and vinylbenzylchloride." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324663.

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14

Alabi, Taiwo Raphael. "Design of photomodifiable material systems for maskless patterning of functional ceramic and metallic materials at multiple length scales." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/51709.

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Silicon and silicon-based materials have been investigated for the fabrication of electronic, optoelectronic, solar, and structural/mechanical devices. To enable the continuous use of silicon-based materials for next generation device applications, new and inexpensive ways of fabricating features of silicon, and silica-based materials are needed. This dissertation investigates: 1) novel techniques for the fabrication of silica and silicon nanofeatures with potential application in the electronics and optoelectronics industry; 2) new designs of photomodifiable material systems (resists) for mas

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15

Lamy, Yoann. "Nanostructuration de résines polyester insaturé par des copolymères à blocs : application aux composites SMC et BMC." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00812588.

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On s'intéresse dans cette étude au potentiel de copolymères à blocs (BCP) de types PBA-b-P(MMA-co-DMA) et PBA-b-P(BA-co-DMA) en tant qu'additifs multifonctionnels nanostructurant la matrice thermodurcissable polyester insaturé de composites SMC et BMC. La nanostructuration de la résine polyester insaturé (UPR) est assurée par la ségrégation du bloc élastomère poly(acrylate de butyle), ainsi que par la miscibilité du deuxième bloc dans le réseau grâce à la bonne compatibilité des motifs diméthylacrylamide (auto-assemblage). Ces BCP sont tout d'abord étudiés en tant qu'agents renforçants et anti

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16

Chen, Ying-Chuan, and 陳盈全. "Synthesis and Properties of Urea- Bark Extracts- Formaldehyde Copolymer Resins." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/97129850790385529100.

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17

ARUNA. "FUNCTIONALIZED PAN BASED COPOLYMER RESINS FOR ADSORPTION OF HEAVY METAL IONS." Thesis, 2014. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15461.

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In this report functionalized polyacrylonitrile (PAN) based copolymer resins were synthesized which can act as adsorbent for the adsorption of heavy metal/metal ions like Fe2+ and Hg2+ etc. Firstly, PAN and its copolymers were synthesized using styrene, acrylamide and methacrylic acid comonomers. PAN and its copolymers like poly(acrylonitrile-styrene) [PANS], poly(acrylonitrile-acrylamide) [PANAm], and poly(acrylonitrile-methacrylic acid) [PANMA] were functionalized using different concentration of triethylenetetramine (TETA) to obtain two series of polymer resins such as F1-PAN, F1-PANS, F1-P

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18

Hsu, Ching-Yi, and 許靜儀. "Study on the Copolymer Resins Made of Agricultural and Forest Residue Extracts." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/09464178863211594701.

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碩士<br>國立中興大學<br>森林學系<br>87<br>Acacia confusa barks and foliage, sugarcane bagasse and rice hull were extracted with NaOH and/or H2SO4 to obtain degraded products for using as partial replacement of the phenol to synthesize extracts-phenol-formaldehyde copolymers as durable water-resistance wood adhesives. The analysis of the chemical compositions of the raw materials as specified in the Tappi standards indicated that rice hull contains 15.44 % and sugarcane bagasse 4.03 % of ash. The holocellulose content of rice hull is 69.74 %, sugarcane bagasse 66.27 %, the barks of Taiwan acacia 42.24 % an

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19

Lin, Yi-lun, and 林義倫. "A study on synthesis and characterization of the Poly(styrene maleic anhydride) copolymer and the curing behavior of epoxy resins." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/35479122171347614207.

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碩士<br>國立臺灣科技大學<br>材料科學與工程系<br>100<br>In this study, we aim to analyze the curing behavior between SMA/MA and DGEBA. The four different ratios of SMA/MA hybrid hardener were well-blended using planetary mixer and cured with DGEBA. The experimental were divided into two parts. Part (i) described the synthesis of SMA, and the results were examined through HNMR, FTIR, GPC, EA, DSC, TGA and solubility. From 1H NMR result, the SMA was synthesized successfully and the properties were Mw (22000), Tg(205 oC) and Tdmax (390 oC).The solubility was high and easy for use. Part (ii) described the effects of

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20

洪侑毅. "Shrinking Characteristics, Internal Pigment-Ability and Mechanical Properties of Low-Shrink Unsaturated Polyester Resins : Effect of the Structure and Molecular Weight of Vinvl Chloride - Vinyl Acetate Copolymer Based Low Profile Additives." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/51852722157292324063.

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碩士<br>國立臺灣科技大學<br>化學工程技術研究所<br>86<br>The effects of five vinyl chloride-vinyl acetate copolymerbased low profile additives (LPA)with defferent chemical structrue and molecular weight, including poly(vinyl actetate)(PVAc),poly(vinyl chloride-co-vinyl acetate)(VC-VAc) and poly (vinyl chloride-co-vinyl acetate-co -maleic anhydride)(VC-VAc-MA),on the volume shrinkage characteristics,internal pigmentability and mechanical properties for three low-shrink unsaturated polyester resin (UP)based on maleic anhydride(MA)-propyleneglycol(PG),MA-PG-PA(phthalic anhydride),and MA-PG-IPA(isophghalic acid)type

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21

Huang, Chiu-Hui, and 黃秋惠. "Studies on Manufacture of Urushiol/Tung oil Copolymer Resin Coatings." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/41407685870532355096.

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碩士<br>國立嘉義大學<br>林業暨自然資源研究所碩士班<br>93<br>To improve the defects of Chinese lacquer (Urushi) and tung oil, as well as to keep the original advantages of each coating film, the study employed the different proportion of urushiol/tung oil with the catalysis of Fe-salen and H2O2 (aq) under the ambient temperature to carry out the polymerizations, and then produced the copolymer coatings. These modified coatings were used to investigate their application on the feasibility of wood finishing. The results obtained are summarized as follows: The GPC tests showed that the number average molecular weigh

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22

Wu, Yun-Hsuan, and 伍允瑄. "Organic-Inorganic Hybrids Prepared from Vinyl Acetate-Acrylic Acid Copolymer Resin and Tetraethoxysilane." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/23096150552264268827.

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碩士<br>國立中興大學<br>森林學系所<br>98<br>In this study, solution- and emulsion-type polyvinyl acetate (PVAc) resins were synthesized from vinyl acetate (VAc) monomer. The influence of forming PVAc copolymer resins by copolymerization with acrylic monomer or forming PVAc/silica organic-inorgenic hybrids by adding tetraethoxysilane (TEOS) prepolymer with a sol-gel process on the properties of PVAc films was investigated. The results showed that films of solution-type PVAc and PVAc/acrylic copolymer resins had good water resistance. The copolymer films that prepared by copolymerizing with methyl methacryla

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23

LIU, PING-HUI, and 劉蘋慧. "Amphiphilic block copolymers via ATRP polymerization utilized in the recycled PET resin." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5m646q.

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碩士<br>國立臺北科技大學<br>分子科學與工程系有機高分子碩士班<br>107<br>Polyethylene terephthalate (PET) is an important thermoplastic polyester. Due to the increasing attention to environmental issues in recent years, waste disposal has become an important social issue. PET recycling seems to be an ideal waste treatment. However, the repeated heat treatment of PET materials may cause reduced properties due to thermal degradation. In this study, amphiphilic block copolymer macromolecules were synthesized by atom transfer radical polymerization (ATRP) to improve the properties of the recycled products. It is expected tha

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24

Doong，Jane and 董蓁. "The Properties Studies of Particleboards Bonded with the Peanut Hull Extracts－Phenol－Formaldehyde Copolymer Resin." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/85248766456086735162.

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碩士<br>國立中興大學<br>森林學系<br>81<br>The peanut hull extracts－phenol－formaldehyde copoly- mer resin as glue to make particleboards and flake-boards using different wood speices（ particleboards made from China fir and Taiwan paulownia,flakeboards made from China fir、Taiwan acacia and Moluccan sau）．This glue named home made resin．The results abtained by this experiment may be summarized as：The pH valueand alkali content of home made resin were higher than the commercial resins，and the free formaldeh

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25

Xie, Ming-Yin, and 謝銘胤. "PREPARATION OF TRIMETHYLSILYL GROUP CONTAINING MONOMER AND ITS COPOLYMERS FOR DEEP-UV RESIST." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/67423868936146945167.

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26

Shieh, Ming-Yinn, and 謝銘胤. "PREPARATION OF TRIMETHYLSILYL GROUP CONTAINING MONOMER AND ITS COPOLYMERS FOR DEEP-UV RESIST." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/89096900727185706066.

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碩士<br>大同工學院<br>化學工程學系<br>84<br>Three series of silicon containing copolymers werer synthesized by the solution free-radical copolymerization with azobisisobutyronitrile(AIBN) in 1,4-dioxane at 50-70 C. For study on the effects of reaction temperature, feed ratio, initiator concentration and solvent on the reaction of copolymerization, various synthesis conditions were used to prepare copolymers.Photopolymers were designed by esterification of PASiMAA (PTSiMAA, or PTSiAA) with ortho-BMNB (pa

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27

Chiou, Chin-Wei, and 邱勤偉. "On Modulating the Phase Behavior of POSS-Containing Diblock Copolymers Blend with Phenolic Resin via Hydrogen Bonding." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/p5qg34.

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碩士<br>國立中山大學<br>材料與光電科學學系研究所<br>102<br>In this study we used living anionic polymerization to prepare two different homopolymers: a poly(methyl methacrylate) (PMMA) and a PMMA derivative presenting polyhedral oligomeric silsesquioxane (PMAPOSS) units as its side chains. We then employed differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, and wide-angle X-ray diffraction (WAXD) to investigate the miscibility and specific interactions of PMMA and PMAPOSS with three hydrogen bonding donor compounds: poly(vinyl phenol) (PVPh), phenolic resin, and bisphenol A (B

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28

Lee, Kuan-yuan, and 李崑源. "Synthesis and Characterization of Novel Copolymers with Trimethylsilyl Group for Deep-UV Chemical Amplified Resists." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/61290988317200662608.

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碩士<br>大同大學<br>化學工程學系(所)<br>92<br>In this studying, the primary of this research was synthesis a new monomer with acid catalyzed chemical amplification cycle, tert-butyl4-(2,5-dioxo-2H-pyrrol -1-yl)benzoate (TBDPB), the new monomer with high thermal stability and high sensitivity, was synthesized by esterification through process from the 4-nitrobenzoic acid、tert-butyl alcohol and maleic anhydride. Free radical copolymerization of this monomer and three monmers with silicon-containing, Allyltrimethylsilane、Allyloxytrimethylsilane and Trimethylsilyl methacrylate, respectively were performed at 6

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29

Wang, Hsin-Min, and 王馨敏. "Precise Synthesis of Various Block copolymers and Hybrid with Thermo-/Photo-cured Epoxy Resins via Reaction-Induced Phase Separation Mechanism and Study the Microstructures." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/am5z9u.

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碩士<br>國立中興大學<br>化學工程學系所<br>107<br>We combined different living polymerization techniques to presicely design various chemical and topological strcutres of block copolymers (BCPs). Due to the different compatibility between the blocks and the thermosetting epoxy resin (ER) matrix, we target to obtain microstrucutes via reaction-induced microphase separation (RIMPS) mechanism during the curing process. PCL-b-PnBA or PCL-b-PMMA with ER blends: We studied the kinetic of ROP to select efficient metal-free catalyst to synthesis PCL-Br macroinitiator (MI). Chain extensions of PCL-Br with nBA or MMA

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30

Chandler, Curran Matthew. "Phase Behavior of Block Copolymers in Compressed CO2 and as Single Domain-Layer, Nanolithographic Etch Resists For Sub-10 nm Pattern Transfer." 2011. https://scholarworks.umass.edu/open_access_dissertations/422.

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Diblock copolymers have many interesting properties, which first and foremost include their ability to self-assemble into various ordered, regularly spaced domains with nanometer-scale feature sizes. The work in this dissertation can be logically divided into two parts - the first and the majority of this work describes the phase behavior of certain block copolymer systems, and the second discusses real applications possible with block copolymer templates. Many compressible fluids have solvent-like properties dependent on fluid pressure and can be used as processing aids similar to liquid solv

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31

Koslowsky, Ingrid L. "Synthesis and evaluation of an [18F]-labelled antisense oligonucleotide as an imaging probe to measure cellular response to radiation therapy." Phd thesis, 2010. http://hdl.handle.net/10048/1267.

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Antisense oligodeoxynucleotides (asODNs) show strong binding and high selectivity and can be constructed to recognize specific cellular targets such as gene regulated mRNA. Radiolabelled asODNs have the potential to image gene expression through mRNA targeting and could be a valuable tool in the early assessment of outcome to cancer treatment. We have explored the potential of in vivo imaging of p21 gene expression, using fluorine-18 labelled asODNs ([18F]asODNs) and in vitro techniques, recognizing the relationship between the expression of this gene and resistance of cancer cells to radiatio

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32

Chandler, Curran Matthew. "Phase behavior of block copolymers in compressed carbon dioxide and as single domain-layer, nanolithographic etch resists for sub-10 nm pattern transfer." 2011. https://scholarworks.umass.edu/dissertations/AAI3482594.

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Diblock copolymers have many interesting properties, which first and foremost include their ability to self-assemble into various ordered, regularly spaced domains with nanometer-scale feature sizes. The work in this dissertation can be logically divided into two parts – the first and the majority of this work describes the phase behavior of certain block copolymer systems, and the second discusses real applications possible with block copolymer templates. Many compressible fluids have solvent-like properties dependent on fluid pressure and can be used as processing aids similar to liquid solv

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