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Dissertations / Theses on the topic 'Thermoplastic elastomer characterization'

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1

Fu, Lin. "SYNTHESIS AND CHARACTERIZATION OF OLIGO(¿-ALANINE) GRAFTED STYRENEBUTADIENE RUBBER." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491521308494791.

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2

VU, YEN THI. "SYNTHESIS AND CHARACTERIZATION OF ELASTOMER-BASED COMPOSITES AND POLYMER-IMMOBILIZED COLLOIDAL TRANSITION METAL NANOPARTICLES: CATALYTIC SELECTIVITY AND MORPHOLOGY." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1004541836.

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3

Jindal, Aditya Jindal. "Electrospinning and Characterization of Polyisobutylene-based Thermoplastic Elastomeric Fiber Mats For Drug Release Application." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1512483246405986.

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4

Pollock, Gregory S. "Synthesis and characterization of silk-inspired thermoplastic polyurethane elastomers." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33718.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2005.<br>Includes bibliographical references.<br>Segmented polyurethane elastomers containing additional ordered structures within the hard or soft domains were developed to mimic the hierarchical structure and superior properties observed in spider silk fibers. The silk's toughness is related to a fiber morphology that includes P-pleated crystalline sheets within an amorphous matrix, as well as an additional interphase with an orientation and mobility between that of the two microphases. In the polyurethane
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Ramezani, Kakroodi Adel. "Production and characterization of thermoplastic elastomers based on recycled rubber." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/30327/30327.pdf.

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Ce travail de doctorat est consacré à la production et à la caractérisation de composés polymères à base de matrices thermoplastiques en mélange avec des particules de caoutchoucs recyclés. Les principales applications visées sont: (A) la production d’élastomères thermoplastiques (TPE) à haute teneur (50% et plus) en poudrette de caoutchouc de pneus usés (GTR); et (B) l’amélioration de la résistance à l’impact des composites thermoplastiques avec de faibles concentrations en GTR. Dans la première partie de ce travail, du polyéthylène maléaté (MAPE) a été utilisé comme matrice pour produire des
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Gergely, Attila Levente. "Synthesis and Characterization of Poly(Alloocimene-b-Isobutylene) Thermoplastic Elastomers." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1404212407.

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7

Alioui, Samy. "Synthesis and characterization of new thermoplastic elastomers (TPEs) based on olefins and conjugated dienes." Electronic Thesis or Diss., Lyon 1, 2024. http://www.theses.fr/2024LYO10173.

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La synthèse par ingénierie macromoléculaire et les applications des copolymères à blocs (BCP) représentent un thème central en chimie des polymères. Les polyoléfines (PO) constituant la classe la plus importante de thermoplastique, les copolymères séquencés à base de PO suscitent un intérêt considérable auprès des chercheurs universitaires et industriels afin d’accéder à des matériaux de performance. Bien que plusieurs stratégies multi-étapes aient été développées pour la synthèse de BCP à base de PO, les procédés en une seule étape utilisant les monomères les plus disponibles comme l’éthylène
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8

Lee, Bin. "Synthesis and characterization of high performance polytetrahydrofuran based polyurethane-urea and ionene elastomers." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80277.

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In this thesis, the effect of interphase bonding on the cohesiveness of domain structure was addressed. The interchain attractive forces between rigid segments and the phase separation between hard and soft segments have been improved by introducing either urea groups or ionic units. The urea linkages have the possibility of extensive hydrogen bonding while ionic units interact with each other by coulombic interactions, which provide even stronger interchain associations than the hydrogen bonding effects. This thesis addressed the preparation and characterization of polytetrahydrofuran based
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9

RAJAN, GURU SANKAR. "PREPARATION AND CHARACTERIZATION OF SOME UNUSUAL ELASTOMERIC AND PLASTIC COMPOSITES." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1022871144.

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10

Williamson, David. "Synthesis and Characterization of Well-Defined Poly(1,3-Cyclohexadiene) Homopolymers and Copolymers." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/29090.

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Polymers containing poly(1,3-cyclohexadiene) were synthesized using a novel pre-formed initiator comprised of an alkyllithium and a tertiary diamine. The use of a pre-formed intiator at moderate temperatures (25° C) enabled the synthesis of high molecular weight poly(1,3-cyclohexadiene) homopolymers (<Mn> = 50000) with narrow molecular weight distributions (<Mw>/<Mn> = 1.20). In contrast, the use of a conventional anionic initiation approach resulted in polymerizations that lacked significant degrees of livingness, which limited the polymer molecular weights to approximately 10000. Use of t
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11

Hassan, Mohamed K. I. "Novel Elastomers, Characterization Techniques, and Improvements in the Mechanical Properties of Some Thermoplastic Biodegradable Polymers and Their Nanocomposites." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1086633832.

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12

M'Bengue, Marie-Stella. "Conception et évaluation d'une endoprothèse vasculaire par impression 3D pour le traitement des anévrismes complexes de l'aorte abdominale." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILS057.

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La réparation endovasculaire (EVAR) d'un anévrisme de l'aorte abdominale (AAA) consiste en la mise en place d'une endoprothèse (EDP) par chirurgie mini-invasive au sein de l'anévrisme. Cet acte permet de prévenir la rupture des tissus endommagés impliqués dans un AAA, défini comme la dilatation localisée du diamètre de l'aorte. Lorsque l'amont de l'anévrisme englobe les artères périphériques rénales et/ou viscérales, l'AAA est qualifié de complexe. Dans ce cas, l'EDP déployée est dite « fenêtrée », en d'autres termes, perforée à l'emplacement des jonctions vers les artères périphériques. La pr
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13

Lee, Jason Chi-Sing 1983. "Characterization of ablative properties of thermoplastic polyurethane elastomer nanocomposites." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-12-2561.

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The advancement of each component of aerospace vehicles is necessary as the continual demand for more aggressive missions are created. Improvements in propulsion and guidance system electronics are invaluable; however without material development to protect the vehicle from its environment those advances will not have a practical application. Thermal protection systems (TPS) are required in both external applications; for example on reentry vehicles, as well as in internal applications; to protect the casing of rockets and missiles. This dissertation focuses on a specific type of internal soli
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14

Lin, Ling-Hung, and 林伶紅. "Preparation and Characterization of Novel Thermoplastic Polyolefin Elastomer Based Root Canal Filling Materials." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/33737411499989219926.

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碩士<br>臺北醫學大學<br>口腔科學研究所<br>94<br>As a vertical compaction root canal filling material, gutta-percha suffered from many disadvantages, such as dimensional contraction during cooling, possible thermal degradation due to the overheating when down packing, and requirement of tedious operational procedures. As such, this study used thermoplastic elastomer, Engage, as base material, Graphite and ZnO as functional fillers, and thermally blended these ingredients at different composition to produce composite materials. Thermal conductivity, melt viscosity, dimensional stability and thermal stability o
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15

Cruz, Sílvia Manuela Ferreira. "Characterization of nano-reinforced thermoplastic elastomers." Master's thesis, 2009. http://hdl.handle.net/1822/10792.

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Dissertação de mestrado (área de especialização em Processamento e Caracterização de Materiais)<br>Os Termoplásticos elastómeros, TPEs, têm vindo a substituir os tradicionais elastómeros devido à sua elevada eficiência mecânica, à sua alta processabilidade e baixo custo. Numa gama cada vez mais alargada de aplicações (p.e., nas indústrias automóvel e militar, componentes médicos, electrónica, construção civil, etc.) as exigências aumentam, assim como a necessidade de materiais com propriedades melhoradas. A mistura de um polímero com um outro material dá origem a um novo sistema poliméric
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16

Chen, Chao-Jen, and 陳昭仁. "Study on Optimal Synthesis and Characterization of Thermoplastic Polyamide Elastomers." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/03095049140386015024.

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碩士<br>大葉大學<br>食品工程研究所<br>88<br>The formulation and optimization of thermoplastic polyamide elastomers (TPAEs) physical properties were evaluated by mixture response surface methodology in this study. The molar ratio of main reaction was 1:1:10 (polyether polyol, chain extender and caprolactam). TPAEs prepared from different chain extenders blends of adipic acid (AA), terephthalic acid (TPA) and dimer acid (DA) were characterized by DSC, TGA, density measurement and water absorption measurement. The densities of the polymers increased as the content of TPA increased. The water absorption data
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17

Liu, Chun-Nan, and 劉俊男. "Study on the Process and Characterization of Thermoplastic Polyamide Elastomers." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/39130961646096364335.

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碩士<br>大葉大學<br>食品工程研究所<br>87<br>The advantages of thermoplastic polyamide elastomers (TPAEs) are good physical and chemical properties, simpler processing, lower density, better control of product quality and recycling of scrap. The disadvantages are often requires long synthesis processing, high water absorbency, high monomer and oligomer content. The objects of this research is to modify the structure and process of TPAEs, so as to reduce the processing time, to decrease the monomer and oligomer content, and to enhance the TPAEs water resistance. The synthesis of C36 dimer acid mod
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18

Chang, Chao-Pin, and 張詔斌. "Study on the Synthesis and Characterization of Melting-Grade Thermoplastic Polyurethane Elastomers." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/71732367431738530235.

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碩士<br>大葉大學<br>食品工程研究所<br>87<br>Thermoplastic polyurethane elastomers (TPU) possess several excellent properties such as abrasion-resistance, elasticity, tear strength and oil-resistance. The synthesis of thermoplastic polyurethane was carried out by a one-shot process using polyester polyol, diphenyl-methane-4, 4-diisocyanate (MDI), and two chain extenders. 1,4-Butanediol and bisphenol A ethoxylate were used as the 1st and the 2nd chain extenders, respectively. From their viscosities and thermal properties data, we found that TPUs with a higher proportion of the 2nd chain extender show bett
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19

Seurer, Bradley. "Synthesis and characterization of novel thermoplastic elastomers employing polyhedral oligomeric silsesquioxane physical crosslinks." 2008. https://scholarworks.umass.edu/dissertations/AAI3315482.

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Polyhedral oligomeric silsesquioxanes (POSS) are molecularly precise isotropic particles with average diameters of 1-2 nm. A typical T 8 POSS nanoparticle has an inorganic Si8O12 core surrounded by eight aliphatic or aromatic groups attached to the silicon vertices of the polyhedron promoting solubility in conventional solvents. Previously, efficient synthetic methods have been developed whereby one of the aliphatic groups on the periphery is substituted by a functional group capable of undergoing either homo- or copolymerization. In the current investigations, preparative methods for the chem
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20

Lee, Jung-Sheng, and 李榮生. "Preparation and Characterization of dynamically vulcanized TPU/SBR and TPU/BR thermoplastic elastomers." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/45428070458094003797.

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碩士<br>崑山科技大學<br>材料工程研究所<br>100<br>This research is separately blend the styrene-butadiene rubber (SBR) and the butadiene rubber (BR) in the thermoplastic polyurethane (TPU), this dynamically vulcanized thermoplastic elastomer is abbreviation TPUSBR and TPUBR, and under different rubber contents and blending ratios, we research the vulcanization behavior, compatibility, post-thermal aging properties, mechanical properties and the foaming shape. From these results, we obtained the following results. During the mixing, the torque curves increases with increasing rubber contents, and in order to a
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