摘要
附生结晶(epitaxy)是指结晶物质在结晶基质上的取向成核和生长。聚合物-聚合物的附生结晶揭示了聚合物间新的结构关系,在高分子物理领域引起了极大兴趣和广泛关注。根据结构关系,聚合物附生结晶主要分为两类,即均相附生结晶(homoepitaxy)和异相附生结晶(het-eroepitaxy)。在异相附生体系中,大多数研究工作集中在全同立构聚丙烯(iPP)
The epitaxial crystallization of LDPE on highly oriented iPP films was studied by means of electron microscopy. The electron microsraphs of LDPE/iPP layered films indicate that after heat treatment and recrystallization, a thin layer of LDPE can form a cross-hatched lamellar structure on the oriented iPP films. The LDPE lameliae incline ±40°to the drawing direction of iPP film. Electron diffraction patterns confirmed that the c axes of LDPE are ±50° apart from the c axes of iPP.The contact planes are (010) of iPP and (100) of LDPE.
出处
《应用化学》
CAS
CSCD
北大核心
1993年第5期81-83,共3页
Chinese Journal of Applied Chemistry
关键词
聚丙烯
聚乙烯
附生结晶
形态结构
polypropylene, low-density polyethylene, epitaxial crystallization, morphology
