Miscibility and surface crystal morphology of blends containing poly(vinylidene fluoride) by atomic force microscopy

被引：60

作者：

Lee, WK

Ha, CS ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

[2] Pusan Natl Univ, Ind Technol Res Inst, Pusan 609735, South Korea

来源：

POLYMER | 1998年 / 39卷 / 26期

关键词：

force microscopy; surface crystalline structure; segmental interaction parameter;

D O I：

10.1016/S0032-3861(97)10081-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The miscibility and surface crystalline structure of blends containing poly(vinylidene fluoride) (PVDF) composed of alpha and gamma phases were investigated by atomic force microscopy (AFM) and differential scanning calorimeter (d.s.c.) measurements. It was found that the surface crystalline phase of PVDF and the degree of surface enrichment of a lower surface free energy component in a blend might strongly be affected by the magnitude of the intermolecular interaction, even though the blend is miscible. Also, the segmental interaction parameters was determined by combining the T-m depression of PVDF in a blend and the binary interaction model. According to the binary interaction model, the introduction of a carboxyl group for miscible [poly(methyl methacrylate)/PVDF] and [poly(vinyl acetate)/PVDF] blends decreased their miscibility. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：7131 / 7134

页数：4

共 20 条

[1]

THIN-FILM BEHAVIOR OF POLY(METHYL METHACRYLATES) (PMMA) .7. STEREOCOMPLEXATION IN MIXED MONOLAYERS OF ISOTACTIC PMMA AND PARTIALLY HYDROLYZED SYNDIOTACTIC PMMA [J].