摘要
利用表面引发原子转移自由基聚合(SI-ATRP)将丙烯酸盐聚合物接枝到聚酯(PET)薄膜表面。研究不同反应温度和反应时间条件下接枝改性对聚酯薄膜表面组成、结构和性能的影响。通过衰减全反射-傅里叶变换红外光谱仪、X射线光电子能谱仪、扫描电子显微镜和热失重仪对接枝改性前后的聚酯薄膜进行相关表征。测试结果表明,反应温度和反应时间对聚酯薄膜的接枝百分率和接触角有一定程度的影响,接枝百分率最大为2.58%,接触角为110°。热失重数据得出,改性薄膜的初始分解温度和引发剂的一致,为395℃,表明接枝的丙烯酸盐聚合物对聚酯薄膜本体热性能影响不大。
Polyester( PET) film was grafted with polyacrylate via surface initiated atom transfer radical polymerization( SI-ATRP) so as to change the surface structures and properties of membrane. The influences of different reaction temperature and time of grafting on the surface compositions,structures and properties of PET films were studied. The Fourier transform infrared spectroscopy( FT-IR /ATR),X-ray photoelectron spectroscopy( XPS),scanning electron microscope( SEM) and thermo-gravimetric apparatus( TGA) were used to characterize the PET initiator and grafted PET film. The results indicate that surface composition and properties of PET films are improved greatly by grafted polyacrylate,then the grafting percentage is 2. 58% and the contact angle of modified film is 110°. The data of TGA shows that chemical change on the film has no effect on the thermal stability of polyester film.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2014年第8期174-177,184,共5页
Polymer Materials Science & Engineering
基金
国家专项基金项目(51243003)
国家青年科学基金资助项目(51203015)
江苏省青蓝工程资助
关键词
聚酯薄膜
表面引发原子转移自由基聚合
丙烯酸盐聚合物
表面性能
热失重
polyester film
surface initiated atom transfer radical polymerization
acrylate polymer
surface properties
thermo-gravimetric apparatus
