高校化学工程学报Issue(2)：283-289,7.DOI:10.3969/j.issn.1003-9015.2013.02.018
含氟丙烯酸酯嵌段共聚物的迁移行为及表面性能研究
Investigation on Migration Behaviors and Surface Performances of Fluoro-containing Acrylate Block Copolymers
王红丹 1李坚 1陈豪杰 1任强 1俞强1
作者信息
- 1. 常州大学 材料科学与工程学院，江苏 常州 213164
- 折叠
摘要
Abstract
Poly(butyl acrylate-b-hexafluorobutyl methacrylate) (PBMA-b-PHFBMA) and poly(butyl acrylate-b-dodecafluo roheptyl methacrylate)(PBMA-b-PDFHMA) two block copolymers with same fluorine content were synthesized by ATRP. The surface performances and migration behaviors of the two copolymers and the blends of these copolymers with polyacrylates were investigated by Attenuated Total Reflectance FT-IR spectroscopy (ATR-FTIR) and atomic force microscopy (AFM). Results show that with the same fluorine content the block copolymer with a longer fluorine-containing side chain (PBMA-b-PDFHMA) has a higher surface fluorine content and lower surface free energy than those of PBMA-b-PHFBMA, which has a shorter fluorine-containing side chain. And the fluorine-containing side chain shows a needle-like morphology and is vertically spreads on the film surface. When the fluorine-containing block copolymers are blended with polyacrlyate resin, the surface free energy of the blends decreases obviously, which indicates the migration of fluorine-containing side chain of the block copolymer on to the surface of the blend film. When the amount of fluoro-containing block copolymer added is up to 5%(wt), the surface free energy of the blends is leveled off. The block copolymer of PBMA-b-PDFHMA which has a longer fluorine-containing side chain decreases the surface free energy of the blend film more effectively than that of PBMA-b-PHFBMA.关键词
含氟嵌段共聚物/表面迁移/含氟量/聚丙烯酸酯树脂/表面自由能Key words
fluoro-containing block copolymer/surface migration/fluorine content/polyacrylate resin/surface free energy分类
化学化工引用本文复制引用
王红丹,李坚,陈豪杰,任强,俞强..含氟丙烯酸酯嵌段共聚物的迁移行为及表面性能研究[J].高校化学工程学报,2013,(2):283-289,7.
