ANIONIC-POLYMERIZATION OF VINYLSILANES .2. MECHANISM OF ISOMERIZATION IN THE POLYMERIZATION OF TRIMETHYLVINYLSILANE WITH BUTYLLITHIUM-N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE

被引:15
作者
OKU, J
HASEGAWA, T
NAKAMURA, K
TAKEUCHI, M
TAKAKI, M
ASAMI, R
机构
[1] Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya
关键词
ANIONIC POLYMERIZATION; ISOMERIZATION POLYMERIZATION; TRIMETHYLVINYLSILANE; N; N'N'-TETRAMETHYLETHYLENEDIAMINE; H-1; NMR; RELAXATION TIME; PROTON ABSTRACTION; PENULTIMATE UNIT; END UNIT;
D O I
10.1295/polymj.23.195
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The isomerization reaction in the anionic polymerization of trimethylvinylsilane (TMVS) with butyllithium (n-BuLi) in the presence of N,N,N',N',-tetramethylethylenediamine (TMEDA) was investigated. An equimolar amount of TMEDA with n-BuLi was found to be necessary and enough for the quantitative isomerization. The isomerization reaction was revealed to take place only intramolecularly. From the spin-lattice relaxation time measurements of the polymer obtained in the isomerization polymerization of TMVS, it was found out that the abstraction of a silymethyl proton from an end unit and the abstraction from a penultimate unit are both possible.
引用
收藏
页码:195 / 199
页数:5
相关论文
共 12 条
[1]   ANIONIC-POLYMERIZATION OF VINYLSILANES .1. NOVEL ISOMERIZATION IN THE ANIONIC-POLYMERIZATION OF TRIMETHYLVINYLSILANE [J].
ASAMI, R ;
OKU, JI ;
TAKEUCHI, M ;
NAKAMURA, K ;
TAKAKI, M .
POLYMER JOURNAL, 1988, 20 (08) :699-702
[2]  
BRYANTSEVA IS, 1980, DOKL AKAD NAUK SSSR, V251, P878
[3]  
BRYANTZEVA IS, 1978, VYSOKOMOL SOEDIN B, V20, P730
[4]   CATALYTIC TELOMERIZATION REACTION OF ETHYLENE WITH AROMATIC HYDROCARBONS [J].
EBERHARDT, GG ;
BUTTE, WA .
JOURNAL OF ORGANIC CHEMISTRY, 1964, 29 (10) :2928-&
[5]  
FILIPPOVA VG, 1974, DOKL AKAD NAUK SSSR, V215, P861
[6]   HIGH-RESOLUTION STUDIES OF NUCLEAR SPIN-LATTICE RELAXATION [J].
FREEMAN, R ;
HILL, HDW .
JOURNAL OF CHEMICAL PHYSICS, 1969, 51 (07) :3140-&
[7]  
NAMETKIN NS, 1963, J POLYM SCI C, V4, P1053
[8]  
OKU J, IN PRESS MACROMOLECU
[9]   METALATION OF METHYLSILANES [J].
PETERSON, DJ .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1967, 9 (02) :373-&
[10]   SYNTHESIS AND PROPERTIES OF POLY(STYRENE-B-TRIMETHYLVINYLSILANE) [J].
RICKLE, GK .
JOURNAL OF MACROMOLECULAR SCIENCE-CHEMISTRY, 1987, A24 (01) :93-104