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Synthesis and characterization of poly(diethylsiloxane) and its copolymers with different diorganosiloxane units
Liu, LH; Yang, SY; Zhang, ZJ; Wang, Q; Xie, ZM
2003-09-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume41Issue:17Pages:2722-2730
AbstractPoly(diethylsiloxane) and its copolymers with various kinds of R1R2SiO (R-1 = R-2 = methyl or phenyl, or R-1 = methyl and R-2 = phenyl) units have been prepared by the equilibrium polymerization of cyclosiloxanes. All the polymers have been characterized by H-1 and Si-29 NMR, gel permeation chromatography, differential scanning calorimetry (DSC), and dynamic mechanical analysis (DMA) measurements. The results indicate that a random distribution of different units has been obtained in the structures of copolymers containing 50 mol % diethylsiloxane units content. DSC and DMA show that the presence of 2.5 mol % diphenylsiloxane units or 5.0 mol % methylphenylsiloxane units in the copolymer can disrupt the crystallinity and lead to noncrystalline copolymers with low glass-transition temperatures (ranging from -133 to -137 degreesC according to DSC). (C) 2003 Wiley Periodicals, Inc.
KeywordPoly(Diethylsiloxane) Copolymers Equilibrium Polymerization Noncrystalline Polymers Glass Transition
DOI10.1002/pola.10822
Indexed BySCI
Language英语
WOS IDWOS:000184650000011
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80664
Collection中国科学院化学研究所
Corresponding AuthorXie, ZM
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, LH,Yang, SY,Zhang, ZJ,et al. Synthesis and characterization of poly(diethylsiloxane) and its copolymers with different diorganosiloxane units[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2003,41(17):2722-2730.
APA Liu, LH,Yang, SY,Zhang, ZJ,Wang, Q,&Xie, ZM.(2003).Synthesis and characterization of poly(diethylsiloxane) and its copolymers with different diorganosiloxane units.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,41(17),2722-2730.
MLA Liu, LH,et al."Synthesis and characterization of poly(diethylsiloxane) and its copolymers with different diorganosiloxane units".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 41.17(2003):2722-2730.
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