OALib Journal期刊
ISSN: 2333-9721
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超支化聚酯的合成及改性
Keywords: 超支化聚酯,超支化聚合物,油酸改性超支化聚酯,涂料树脂
Abstract:
?以三羟甲基丙烷为核分子,二羟甲基丙酸为单体,合成了拟四代超支化聚酯。采用了ir、gpc、特性粘数和化学滴定等方法对产物进行了表征和分析。实验表明合成的拟四代超支化聚酯具有较窄的分子量分布和较小的多分散性指数,有类似硬球形的分子结构;其n=4.68×103g/mol,w=5.4×103g/mol,w/n=1.15,[η]=5.28ml/g。进一步用油酸对聚合物进行改性,并研究了固含量与粘度的关系及其漆膜的性能;结果表明该树脂具有良好的成膜性和涂膜性能。
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