A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene
文献类型:期刊论文
作者 | Zhang, Jichuan; Xue, Zhaohong |
刊名 | POLYMER TESTING
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出版日期 | 2011-10-01 |
卷号 | 30期号:7页码:753-759 |
关键词 | Eucommia Ulmoides Gum Crystallinity Stress-strain Curve Synthetic Trans-1 4-polyisoprene |
ISSN号 | 0142-9418 |
DOI | 10.1016/j.polymertesting.2011.06.010 |
英文摘要 | (13)C NMR spectra show that Eucommia ulmoides(EU) gum is all-trans-1,4-polyisoprene molecular structure, while synthetic trans-1,4-polyisoprene (STPI) contains 0.52% cis-1,4units and 0.34% 3,4-units which distribute randomly as monomer, dyad, or triad sequences along its macromolecular chain. This will destroy the regularity of macromolecular chain of STPI which will in turn lower its degree of crystallinity, slow its rate of crystallization and reduce its crystal dimensions. When crystallizing from the molten state at room temperature, EU gum can grow more beta-form than alpha-form crystals, while STPI tends to grow more alpha-form than beta-form crystals, which can be proved by WAXD and DSC. As a result, the stress-strain curve of STPI greatly differs from that of EU gum. (C) 2011 Elsevier Ltd. All rights reserved. |
语种 | 英语 |
WOS记录号 | WOS:000295244200010 |
出版者 | ELSEVIER SCI LTD |
源URL | [http://ir.iccas.ac.cn/handle/121111/71557] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Zhang, Jichuan |
作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Jichuan,Xue, Zhaohong. A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene[J]. POLYMER TESTING,2011,30(7):753-759. |
APA | Zhang, Jichuan,&Xue, Zhaohong.(2011).A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene.POLYMER TESTING,30(7),753-759. |
MLA | Zhang, Jichuan,et al."A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene".POLYMER TESTING 30.7(2011):753-759. |
入库方式: OAI收割
来源:化学研究所
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