摘要
用熔融缩聚法合成了一系列聚(丁二酸丁二醇酯丁二酸环己烷二甲醇酯)的无规共聚物。用FT-IR,1H-NMR,DSC,TGA,XRD及水降解测试等方法表征了材料的结构与性能。通过DSC和TGA分析得到产物的熔点虽然较聚丁二酸丁二醇酯(PBS)有所降低,但是热分解温度却得到了提高;XRD测试结果表明,共聚物的晶体结构并没有发生改变;水降解测试结果表明,共聚物较PBS的降解速率有所提高。
A series of copolyesters of succinic acid-1,4-butanediol/succinic acid-1,4-cycl- ohexanedimethanol were synthesized and characterized by means of Fourier transform infrared spectroscopic （FT-IR）, hydrogen nuclear magnetic resonance spectrum （^1H-NMR）, differential scanning calorimetry （D S C）, thermogravimetry analysis （TGA）, X-ray diffraction （XRD） and hydrolytic degradation. Though the melting temperature decreased, the copolymers showed the higher thermal decomposition temperature which was justified by TGA. X-ray diffraction shows that the crystal structure of copolymers is the same as poly （butylene succinate）（PBS）. The results of hydrolytic degradation show that the rate of biodegradation of copolymers are higher than that of PBS.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2009年第11期16-18,22,共4页
Polymer Materials Science & Engineering
基金
安徽省人才培养及科研带头人专项资金资助
安徽大学人才队伍建设经费资助
关键词
生物降解聚合物
聚(丁二酸丁二醇酯)
缩聚
共聚改性
水降解
biodegradablepolymer
poly （ butylene succinate ）
polycondensation
copolymerization modification
hydrolytic degradation
