Co-Polymerization of Maleimides and Vinyl Ethers: A Structural Study
Co-Polymerization of Maleimides and Vinyl Ethers: A Structural Study
复制标题
马来酰亚胺和乙烯基醚的共聚：结构研究
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
G. Blanchard
中科院分区：
文献类型：
--
作者：
P. Kohli;A. Scranton;G. Blanchard
本文报道了供电子二乙烯基醚二（4-乙烯基氧基丁基）琥珀酸酯（DVBS）和供电子的1,5-二（马来酰亚胺）-2-甲基戊烷（BMMP）及其单功能类似物十二烷基乙烯醚（DDVE）、n-甲基马来酰亚胺（NMM）和n-苯基马来酰亚胺（NPM）的热诱导和光诱导聚合。我们关注聚合过程中单体成分的化学计量学，以及聚合物产品的结构特性和键构型。对于BMMP - DVBS和NMM - DDVE， FTIR和1H NMR数据表明所得聚合物的化学计量为1:1。对于这两种体系，聚合物是交替供体和受体形式（DA）n。这一结果对光诱导反应和热诱导反应都成立。由单官能单体和双官能单体合成的聚合物的结构核磁共振研究表明，在D−A键上存在受体的顺式和反式构象。这一发现表明，热力学因素本身不足以……
We report on the thermally-induced and photoinduced polymerization of the electron-donating divinyl ether di(4-vinyloxybutyl)succinate (DVBS) and the electron accepting 1,5-bis(maleimido)-2-methylpentane (BMMP) and their monofunctional analogues, dodecylvinyl ether (DDVE), N-methylmaleimide (NMM), and N-phenylmaleimide (NPM). We focus on the stoichiometry of the monomer constituents consumed in the polymerization and the structural identity and bonding configuration(s) of the polymer products. For both BMMP−DVBS and NMM−DDVE, FTIR and 1H NMR data indicate 1:1 stoichiometry for the resulting polymer. For both systems, the polymers are of the alternating donor and acceptor form (DA)n. This result holds for both photoinduced and thermally induced reactions. Structural NMR studies of polymers synthesized from both mono- and difunctional monomers indicate the presence of both cis and trans conformers of the acceptor at the D−A bond. This finding indicates that thermodynamic factors alone are not sufficient to ...