摘要
以环己酮为溶剂,将聚氯乙烯(PVC)与聚乳酸(PLA)的钠盐进行反应,合成了以PVC为主链、PLA为支链的接枝聚合物(PVC-g-PLA)。讨论了实验条件对产物接枝率的影响,用核磁共振氢谱(1H-NM R)、红外光谱(FT-IR)和凝胶渗透色谱(GPC)对接枝聚合物进行了表征。采用土壤掩埋试验和扫描电镜(SEM)分析的方法,研究了接枝物的生物降解性。
The biodegradable material of poly（lactic acid） side chains were prepared by the direct polymerization. The graft copolymer with poly （vinyl chloride） backbone and poly （lactic acid） side chain （PVC-g-PLA） was synthesized by the reaction between chlorine in PVC and sodium salts of PLA which were formed through the reaction of the hydroxyl group （-OH） in PLA with metal sodium in cyclohexanone. The influence of reaction temperature and time on the grafting degree of PVC-g-PLA was discussed, 1H-NMR, FT-IR and GPC were used to characterize the graft copolymer. The biodegradation of the copolymer was studied through outdoor soil burial and SEM analyses. The results show that the graft copolymer is degraded gradually under microorganism.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2006年第2期47-50,共4页
Polymer Materials Science & Engineering
基金
汕头大学科学研究基金资助项目
关键词
聚氯乙烯
聚乳酸
接枝
生物降解
poly（vinyl chloride）
poly（lactic acid）
graft
biodegradation
