Synthesis of substituted polymethylenes by radical polymerization of alkyl N,N‐dialkylfumaramates and maleamates: Relative reactivity of the isomers
Synthesis of substituted polymethylenes by radical polymerization of alkyl N,N‐dialkylfumaramates and maleamates: Relative reactivity of the isomers
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通过烷基 N,N-二烷基富马酸酯和马来酸酯的自由基聚合合成取代的聚亚甲基：异构体的相对反应性
DOI：
10.1002/pola.1991.080291204
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
T. Otsu
中科院分区：
文献类型：
--
作者：
A. Matsumoto;Ryuji Kotaki;T. Otsu
在自由基引发剂存在下，进行了N，N-二烷基马来酸酯（FAE）和马来酸酯（MAE）的本体聚合。已经发现，FAE比MAE更反应性时，两个几何异构体的反应性进行比较，为他们的均聚和共聚。从这些单体的酯和N-取代基的影响的调查，它已被发现，异丙酯比甲酯显示出更高的反应性，N-乙基和正丁基取代得到的聚合物具有高分子量的数千以上。从FAE和MAE得到的取代聚亚甲基进行了表征和相互比较。研究了吗啉催化的MAE异构化反应和单体异构化自由基聚合反应。
Bulk polymerization of alkyl N,N-dialkylfumaramates (FAE) and maleamates (MAE) was performed in the presence of a radical initiator. It has been found that FAE is more reactive than MAE when the reactivity of the two geometrical isomers was compared for their homo- and copolymerizations. From investigation on the effect of ester and N-substituents of these monomers, it has been found that the isopropyl ester shows a higher reactivity than the methyl ester and that N-ethyl and n-butyl substitution gives polymers with high molecular weight of more than several thousands. The resulting substituted polymethylenes from FAE and MAE were characterized and compared with each other. The isomerization of MAE to FAE with morpholine as an isomerization catalyst and monomer-isomerization radical polymerization were also investigated.