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A comparative study on the properties of Eucommia ulmoides gum and synthetic trans-1,4-polyisoprene
Zhang, Jichuan; Xue, Zhaohong
2011-10-01
Source PublicationPOLYMER TESTING
ISSN0142-9418
Volume30Issue:7Pages:753-759
Abstract(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.
KeywordEucommia Ulmoides Gum Crystallinity Stress-strain Curve Synthetic Trans-1 4-polyisoprene
DOI10.1016/j.polymertesting.2011.06.010
Indexed BySCI
Language英语
WOS IDWOS:000295244200010
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71558
Collection中国科学院化学研究所
Corresponding AuthorZhang, Jichuan
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
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.
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