Preparation of block‐ and graft copolymers starting from a bicyclic oxalactam
Preparation of block‐ and graft copolymers starting from a bicyclic oxalactam
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以双环草内酰胺为原料制备嵌段和接枝共聚物
DOI：
10.1002/macp.1985.020121985105
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发表时间：
1985
影响因子：
2.5
通讯作者：
H. Sumitomo
中科院分区：
文献类型：
--
作者：
K. Hashimoto;H. Sumitomo
以端异氰酸酯基聚氧乙烯醚为活化剂，通过双环内酰胺8-氧杂-6-氮杂双环[3.2.1]辛烷-7-酮的阴离子聚合，得到了一种新型的以亲水性聚酰胺为外链段、聚氧乙烯为内链段的嵌段共聚物。通过双环内酰胺的阴离子聚合，然后与对乙烯基苄胺反应，制备了一种新型的具有乙烯基苄基端基的聚酰胺大分子单体。将其与苯乙烯进行自由基共聚合，得到由非极性疏水聚苯乙烯和亲水聚酰胺支链组成的接枝共聚物。
A new block copolymer composed of hydrophilic polyamide as outer segments and polyoxyethylene as an inner segment was obtained by anionic polymerization of a bicyclic oxalactam, 8-oxa-6-azabicyclo[3.2.1]octan-7-one, using the isocyanate-terminated polyoxyethylene as an activator. A novel polyamide macromer having a vinylbenzyl end group was prepared by anionic polymerization of the bicyclic oxalactam followed by the reaction with p-vinylbenzylamine. Its radical copolymerization with styrene was conducted to obtain a graft copolymer consisting of a nonpolar hydrophobic polystyrene stock and hydrophilic polyamide branches.