نتایج جستجو برای: poly trimethylene terephthalate

تعداد نتایج: 86204  

2017
Yi-Cheng Feng Hui Zhao Tong-Hui Hao Guo-Hua Hu Tao Jiang Qun-Chao Zhang

To understand the role of molecular structure on the crystallization behavior of copolyester in thermoplastic poly(ether ester) elastomers (TPEEs), series of poly(butylene-co-1,4-cyclohexanedimethylene terephthalate) (P(BT-co-CT))-b-poly(tetramethylene glycol) (PTMG) are synthesized through molten polycondensation process. The effects of poly(cyclohexanedimethylene terephthalate) (PCT) content ...

Journal: :Acta Crystallographica Section E Structure Reports Online 2007

Journal: :Polymer Degradation and Stability 2022

Highly promising fully biobased random copolyesters, poly(trimethylene 2,5-furandicarboxylate-co-trimethylene sebacate) (PTFcoPTSeb), were synthesized by using bio derived 1,3-propanediol, dimethyl ester of 2,5- furandicarboxylic acid, and sebacic through eco-friendly polycondensation in the melt. Copolymers with high molecular weight containing 5, 15, 25 mol % PTSeb obtained, their chemical st...

2010
Xiao-hua Luo Jun Feng Hua-fen Wang Wei Su Xian-zheng Zhang Ren-xi Zhuo

In this study, we developed a metal-free biosynthetic strategy of enzymatic polymerization to fabricate aliphatic poly(pentamethylene carbonate) (PPMC). Novozym-435 lipase showed considerably high catalytic efficiency, and high molecular weights (Mn) of up to 6.0 104 g mol 1 were readily achieved through the ring-opening polymerization of cyclobis(pentamethylene carbonate). The reaction paramet...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

a new simple and reliable method for rapid and selective extraction and determination of trace levels of zn(ii) ion is developed. zn(ii) ions are adsorbed quantitatively during passage of aqueous samples through pet-aa/aam nano fiber modified. almost all matrix elements were found to pass through the nano fiber to drain. modified poly (ethylene terephthalate)-grafted-acrylic acid/acryl amide na...

2011
Sheng Chu Dongdong Li Pai-Chun Chang Jia G Lu

Flexible dye-sensitized solar cells are fabricated using vertically aligned ZnO nanowire arrays that are transferred onto ITO-coated poly(ethylene terephthalate) substrates using a simple peel-off process. The solar cells demonstrate an energy conversion efficiency of 0.44% with good bending tolerance. This technique paves a new route for building large-scale cost-effective flexible photovoltai...

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