α-Trialkoxysilyl Functionalized Polycyclooctenes Synthesized by Chain-Transfer Ring-Opening Metathesis Polymerization
α-Trialkoxysilyl Functionalized Polycyclooctenes Synthesized by Chain-Transfer Ring-Opening Metathesis Polymerization
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链转移开环易位聚合合成α-三烷氧基甲硅烷基官能化聚环辛烯
DOI：
10.1021/acs.macromol.5b01863
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发表时间：
2015
期刊：
影响因子：
5.5
通讯作者：
Sophie M. Guillaume
中科院分区：
文献类型：
--
作者：
A. Diallo;X. Michel;S. Fouquay;G. Michaud;F. Simon;Jean;J. Carpentier;Sophie M. Guillaume
以几种三烷氧基硅烷为链转移剂(CTA；乙烯基三甲氧基硅烷(1)、烯丙基三甲氧基硅烷(2)和3-(三甲氧基硅基)丙烯酸丙酯(3))和不同的鲁卡宾-烷基亚烷基催化剂，对环辛烯(COE)或3-烷基取代的COE(3R-COE，R=乙基，正己基)进行开环歧化聚合/交叉歧化反应(ROMP/CM)。α-单官能团(MF)、α，ω-双官能团(DF)、异构化α-单官能团(IMF)、线性非官能团(LnF)、异构化线性非官能团(ILNF)和环状非官能团(CNF)PCOEs的形成按两阶段机制合理化。首先，单官能化(MF)和非官能化(LNF，CNF)大分子的形成是通过ROMP/CM和RCM(闭环复分解)过程进行的。随后，C═C异构化(ISOM)结合第二CM过程得到了异构化(ILNF，IMF)和去功能化(DF)的大分子。无趣的..。
Ring-opening metathesis polymerization/cross-metathesis (ROMP/CM) of cyclooctene (COE) or 3-alkyl-substituted COEs (3R-COEs, R = ethyl, n-hexyl) using several trialkoxysilyl monofunctionalized alkenes as chain-transfer agents (CTAs; vinyl trimethoxysilane (1), allyl trimethoxysilane (2), and 3-(trimethoxysilyl)propyl acrylate (3)) and various Ru–carbene–alkylidene catalysts afforded several trialkoxysilyl mono- and difunctionalized polyolefins. The formation of α-monofunctional (MF), α,ω-difunctional (DF), isomerized α-monofunctional (IMF), linear nonfunctional (LNF), isomerized linear nonfunctional (ILNF), and cyclic nonfunctional (CNF) PCOEs is rationalized by a two-stage mechanism. First, formation of monofunctionalized (MF) and nonfunctionalized (LNF, CNF) macromolecules takes place through a ROMP/CM along with RCM (ring-closing metathesis) process. Subsequently, C═C isomerization (ISOM) combined with a second CM process give isomerized (ILNF, IMF) and difunctionalized (DF) macromolecules. The nonfunc...
影响因子：
5.2
作者：
Stewart, Ian C.;Douglas, Christopher J.;Grubbs, Robert H.
通讯作者：
Grubbs, Robert H.