Synthesis of Polyfunctional Polymers1
Synthesis of Polyfunctional Polymers1
复制标题
多官能聚合物的合成1
DOI：
10.1021/jo01102a009
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发表时间：
1958
影响因子：
3.6
通讯作者：
J. D. Cotman
中科院分区：
文献类型：
--
作者：
Joseph A. Blanchette;J. D. Cotman
Polyfunctional polymers were synthesized by chemical modification of hydrocarbon and nitrile polymers and by copolymerization of selected monomers. Reactions included aromatic nitration, chloromethylation and acylation, reduction of nitro, oximino, carbonyl and nitrile groups and other carbonyl reactions. Polymersutilized included polystyrene, polyacrylo-nitrile, and copolymers of methyl vinyl ketone with acrylonitrile and styrene.Chemical modification of high polymers has been studied extensively. In thisstudy polystyrene was chosen as a base polymer for modification because of the ready reactivity of the benzene ring to well defined products of definite structure for a number of reactions. Nitropolystyrene was prepared as a precursor of a variety of substituted polystyrenes such as aminopolystyrene and the products of re-action of diazotized aminopolystyrene. The nitrated polymer has been previously prepared2-6 under conditions resulting in varying degrees of polymer degradation because of the vigor of the nitrating techniques (use of concentrated sulfuric and nitric acid mixtures at elevated temperatures). Acetylnitrate is an efficient nitrating agent at moderate temperatures, however, and should effect nitration of polystyrene without simultaneous polymer deg-radation. To increase the solubility of polystyrene in nitrating media, several polystyrenes of low
