摘要
利用桐油在空气中氧化自聚的特性，不但引发自身的聚合，还带动与苯乙烯的共聚，合成了天然产物与人工单体的共聚物。采用现代分析手段对产物结构进行了表征，探讨了这种特殊的自由基聚合反应机理。此外，还对产物的降解性能进行了研究。结果表明：桐油在空气中氧的作用下，产生过氧化物（1，4-环过氧化或过氧化氢），然后引发桐油一苯乙烯共聚。加聚方式主要以1，4加成为主。共聚物具有潜在的降解性能，而且桐油与苯乙烯的质量比为1：3～1：4时的降解性能较佳。综合降解和合成两方面因素，质量比1：4时最好。
Tung oil can be copolymerized with styrene without initiator. This polymerization mechanism is based on its self-polymerization characteristic after being oxidized in air. The special mechanism of free-radical polymerization was explored by several modern analytical ways. Degradation of the product was also investigated. The mechanism is that after tung oil has been oxidized, peroxides which include hydrogen peroxide or 1,4 ring-peroxide can be formed, then peroxybonds break and initiate copolymerization between styrene and tung oil. The way of 1,4-addition polymerization plays a primary role in the reaction. Experimental results showed that the copolymer had potential properties of bio-degradation. Weight ratio of tung oil to styrene between 1 ： 3 and 1 ： 4,especially 1 ： 4, was appropriate for both polymerization and degradation.
出处
《林产化学与工业》
EI
CAS
CSCD
2006年第1期37-40,共4页
Chemistry and Industry of Forest Products
关键词
桐油
苯乙烯
共聚
降解
tung oil
styrene
copolymerization
degradation
作者简介
蒲侠（1977-），女，安徽宿州人，助教，硕士，研究方向为聚合物基复合材料。
