화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터)
권호 34권 1호
발표분야 고분자 구조 및 물성
제목 Surface Morphology of Poly(vinylidene fluoride-co-hexafluoropropylene) Thin Film
초록 Surface morphology of polyvinylidene fluoride (PVDF) and PVDF copolymer thin film with 11.30 and 16.99 mol% hexafluoropropylene (HFP) have been investigated on the basis of microstructure distribution, molecular conformation, and surface morphology. To observe morphology of 1μm film, spin-coated films on slide glass were crystallized by slow cooling from 200 ℃. Length of VDF chain in copolymer chain is restricted by adjacent HFP unit. And crystalline temperature showed low temperature and broadly peak, respectively. Compared to the corresponding PVDF film, copolymer with 11.30 mol% HFP changes the crystalline phase to amorphous phase. It was found that typical sperulites and many grain observed in PVDF film don’t appear in copolymer. Furthermore, copolymer film with 16.99 mol% HFP appeared flat roughness such as amorphous polymer film.
저자 이상구1, 하종욱1, 박인준1, 이수복1, 이종대2
소속 1한국화학(연), 2충북대
키워드 vinylidene fluoride; hexafluoropropylene; solution radical polymerization; surface morphology
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