Polymethylsilsesquioxane and Hydroxyl-Terminated Polydimethylsiloxane Composite: Vapor Incubation before Thermal Curing
文献类型：期刊论文
| 作者 | Li, Yanfang; Yang, Shuguang; Liu, Haiyun; Li, Xiaofeng; Dai, Zhen; Zhao, Ning; Xu, Jian |
| 刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| 出版日期 | 2009-02-05 |
| 卷号 | 111期号:3页码:1454-1461 |
| 关键词 | Hydroxyl-terminated Polydimethylsiloxane Polymethylsilsesquioxane Silanol Condensation |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.28943 |
| 英文摘要 | A composite film of polymethylsilsesquioxane (PMSQ) and hydroxyl-terminated polydimethylsiloxane (PDMS) was prepared by incubating PMSQ prepolymer and PDMS solution in a vapor environment before thermal curing. Vapor incubation has a significant influence on the morphology and properties of the cured composite, and the vapor incubation was conducted under three different conditions, i.e., acidic, neutral, and basic. In the acidic vapor of a pH rather lower than the isoelectric point (IEP) of the silanol, the reaction between PMSQ and PDMS through silanol condensation was promoted by the protonation of silanol. PDMS rubber particles with a domain size of about 100 nm were formed in PMSQ matrix, and the flexible modulus of the film was unproved. While, the morphology of the resultant film was smooth and uniform after incubation in a neutral water vapor. The basic vapor facilitated the gelation of composite due to high pH inducing more rapid silanol condensation in PMSQ than phase separation. Moreover, excellent optical transparency, insulation, and thermal stability of the composite were also retained after the PDMS incorporation. (c) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 111: 1454-1461, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000261660200037 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67987]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, Jian |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yanfang,Yang, Shuguang,Liu, Haiyun,et al. Polymethylsilsesquioxane and Hydroxyl-Terminated Polydimethylsiloxane Composite: Vapor Incubation before Thermal Curing[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2009,111(3):1454-1461. |
| APA | Li, Yanfang.,Yang, Shuguang.,Liu, Haiyun.,Li, Xiaofeng.,Dai, Zhen.,...&Xu, Jian.(2009).Polymethylsilsesquioxane and Hydroxyl-Terminated Polydimethylsiloxane Composite: Vapor Incubation before Thermal Curing.JOURNAL OF APPLIED POLYMER SCIENCE,111(3),1454-1461. |
| MLA | Li, Yanfang,et al."Polymethylsilsesquioxane and Hydroxyl-Terminated Polydimethylsiloxane Composite: Vapor Incubation before Thermal Curing".JOURNAL OF APPLIED POLYMER SCIENCE 111.3(2009):1454-1461. |
入库方式： OAI收割
来源：化学研究所
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