Crystallization-induced aging in poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers
文献类型：期刊论文
| 作者 | Yao, Chenguang1,2; Yang, Guisheng1,3 |
| 刊名 | Journal of polymer science part b-polymer physics
 |
| 出版日期 | 2010-02-15 |
| 卷号 | 48期号:4页码:411-416 |
| 关键词 | Aging Crystallization Microstructure Polycondensation Poly(ether-ester) |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.21901 |
| 通讯作者 | Yang, guisheng(ygs@geniuscn.com) |
| 英文摘要 | A new type poly(ether-ester) based on poly(trimethylene terephthalate) as rigid segments and poly(ethylene oxide terephthalate) as soft segments was synthesized and its aging behavior were investigated. different from other polymer, the segmented block copolymers exhibited a unique aging mechanism. that is, the degradation of mechanical property within short term annealing was due to the overgrown crystals and dramatically increased crystallinity, which was proved by field emission scanning electron microscope (fe-sem) and differential scanning calorimetry (dsc), respectively. the deterioration in mechanical property after long term annealing was the results of both the increase in crystallinity and the decrease in molecular weight. moreover, fe-sem showed many interesting flower-like crystals presented on the surface of annealed sample. the flower-like crystals consist of several radialized petal-like arms and a more densely packed center, which has been seldom found in polymer bulk. wide-angle x-ray diffraction results showed that the copolymer has the same crystal structure as ptt. such poly(ether-ester) or its blends with other polymer could be suitable for rapid degradable products, such as package and vessel. (c) 2010 wiley periodicals, inc. j polym sci part b: polym phys 48: 411-416, 2010 |
| WOS关键词 | MECHANICAL-PROPERTIES ; DEGRADATION ; ABSORPTION ; MORPHOLOGY ; BEHAVIOR |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000274751200003 |
| 出版者 | JOHN WILEY & SONS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2415137 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yang, Guisheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Joint Lab Polymer Sci & Technol, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Shanghai Genius Adv Mat Co Ltd, Shanghai 201109, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Chenguang,Yang, Guisheng. Crystallization-induced aging in poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers[J]. Journal of polymer science part b-polymer physics,2010,48(4):411-416. |
| APA | Yao, Chenguang,&Yang, Guisheng.(2010).Crystallization-induced aging in poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers.Journal of polymer science part b-polymer physics,48(4),411-416. |
| MLA | Yao, Chenguang,et al."Crystallization-induced aging in poly(trimethylene terephthalate)/poly(ethylene oxide terephthalate) segmented block copolymers".Journal of polymer science part b-polymer physics 48.4(2010):411-416. |
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来源：中国科学院大学
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