摘要
在聚丁二酸丁二酯(PBS)分子主链中添加带有不饱和键的马来酸酐(MAH)和富马酸(FA)单体,得到了含有不饱和键的,具有顺、反结构的PBS基共聚物。通过广角X射线衍射、热重分析、差示扫描量热分析和拉力测试等分析手段,研究了不同结构共聚物的性能。结果表明,随着MAH和FA含量的增加,两种改性后的PBS基共聚物的晶粒尺寸减小;玻璃化转变温度都有所降低;共聚物的热稳定性都略有降低,但高于300℃,仍具有良好的热稳定性;共聚物的拉伸强度差异较大,但断裂伸长率明显提高。在PBS主链中形成顺、反结构的两种单体的添加对PBS基共聚物性能的影响没有太大差别。
Maleic anhydride（MAH） and fumaric acide（FA） were added in poly（butylenes-succinate）（PBS） to obtain PBS-based copolymer with an unsaturated bond and a cis-trans structure.The performance of the copolymer was studied by wide-angle X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry and tensile testing.The results show that with the amount of MAH and FA increasing, the grain size of copolymer decreases ; the glass transition temperature reduces.Although the thermal stability is slightly lower, it is still higher than 300℃. So the thermal stability is acceptable. The tensile strength of the copolymer is different, but the elongation at break is significantly improved.There is no much difference between P（BS-co-MAH） and P（BS-co- FA）.
出处
《工程塑料应用》
CAS
CSCD
北大核心
2013年第1期13-17,共5页
Engineering Plastics Application
基金
陕西省教育厅产业化育研项目(2010 JC01)
陕西省重大科技创新项目(2009ZKC08-09)
关键词
聚丁二酸丁二酯
共聚改性
顺反结构
马来酸酐
富马酸
poly（butylenes-succinate）
copotymerization modification
cis-trans structure
maleic anhydride
fumaric acid
