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yong mei cu kai huan ju he yu yuan zi zhuan yi zi you ji ju he fang fa zhi bei shu zhi zhuang qian duan gong ju wu
2006
用固定化酶Novozyme435(NV435)催化2,2羟甲基丁酸(2,2-bis(hydroxymethyl)butyric acid),开环缩聚得到端基带有羧基和羟基的树枝状聚酯,用α-溴代丙酰溴将聚酯的端羟基功能化,从而形成超枝化大分子引发剂,在CuCl/多氮配体(HMTETA)体系中引发苯乙烯进行原子转移自由基聚合反应(ATRP),得到聚己内酯聚苯乙烯嵌段共聚物(P(e-CL)-b-PSt),通过核磁共振(NMR)确证了聚合物结构,用凝胶渗透色谱(GPC)测定聚合物分子量及分布.
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