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H-1 NMR relaxation and theoretical calculation study on Tris (pentafluorophenyl)borane as a catalyst in preparation of Poly(carborane-siloxane) polymers

文献类型：期刊论文

作者Lou, Pingping1,2; Zhang, Xuezhong1; Tan, Yongxia1,2; Zhang, Zhijie1; Bian, Wensheng2,3; Ma, Haitao3; Xie, Zemin1
刊名POLYMER TESTING
出版日期2019-02-01
卷号73页码:412-417
关键词Tris(pentafluorophenyl)borane Poly(carborane-siloxanc) polymers H-1 NMR relaxation Theoretical calculation
ISSN号0142-9418
DOI10.1016/j.polymertesting.2018.11.030
通讯作者Zhang, Zhijie(zhangzj@iccas.ac.cn) ; Ma, Haitao(mht@iccas.ac.cn)
英文摘要Poly(carborane-siloxane) polymers were successfully synthesized by tris(pentafluorophenyl)borane catalyzing diorganohydroxysilanes (Si-OH) and dihydrosilanes (Si-H) to form siloxane bond and release hydrogen. The structure of monomers and polymers were characterized by H-1, C-13, Si-29 NMR and FI-IR. Furthermore, in the present study, the qualitative characterization of silicon hydrogen bond in dihydrosilanes activated by catalyst B (C6F5)(3) was investigated by H-1 NMR relaxation test and theoretical calculation. The results shown that silicon hydrogen bond (Si-H) and B(C6F5)(3) form the complex [Si center dot center dot center dot H center dot center dot center dot B(C6F5)(3)] which is relevant to chemical re-activity. In addition, dihydrosilanes exhibit the following reactive activity order: 1,1,3,3-tetra-methyldisiloxane > 1,7-bis(3-hydridotetramethyldisiloxanyl)-m-carborane > diphenylsilane > methylphenylsilane > 1,7-bis(dimethylsilyl)-m-carborane. This synthetic method offers a new effective approach to synthesize poly(carborane-siloxane) polymers and the reactive activity order has a guide significance for experimental system design.
WOS关键词SILICA ; OLIGOMERIZATION ; HYDROSILATION ; DERIVATIVES ; MECHANISM ; ALCOHOLS
WOS研究方向Materials Science ; Polymer Science
语种英语
WOS记录号WOS:000470937900049
出版者ELSEVIER SCI LTD
源URL[http://cas-ir.dicp.ac.cn/handle/321008/175762]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Zhang, Zhijie; Ma, Haitao
作者单位1.Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Zhongguancun North First St 2, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Mol React Dynam, Zhongguancun North First St 2, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Lou, Pingping,Zhang, Xuezhong,Tan, Yongxia,et al. H-1 NMR relaxation and theoretical calculation study on Tris (pentafluorophenyl)borane as a catalyst in preparation of Poly(carborane-siloxane) polymers[J]. POLYMER TESTING,2019,73:412-417.
APA Lou, Pingping.,Zhang, Xuezhong.,Tan, Yongxia.,Zhang, Zhijie.,Bian, Wensheng.,...&Xie, Zemin.(2019).H-1 NMR relaxation and theoretical calculation study on Tris (pentafluorophenyl)borane as a catalyst in preparation of Poly(carborane-siloxane) polymers.POLYMER TESTING,73,412-417.
MLA Lou, Pingping,et al."H-1 NMR relaxation and theoretical calculation study on Tris (pentafluorophenyl)borane as a catalyst in preparation of Poly(carborane-siloxane) polymers".POLYMER TESTING 73(2019):412-417.

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来源：大连化学物理研究所

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