期刊
COLLOID AND POLYMER SCIENCE
卷 287, 期 2, 页码 147-155出版社
SPRINGER
DOI: 10.1007/s00396-008-1958-z
关键词
Ternary blends; Crystallization; Hydrophilicity; Miscibility; Poly(vinylidene fluoride) (PVDF); Poly(methyl methacrylate) (PMMA); Poly(styrene-co-acrylonitrile) (SAN)
资金
- BMSTC [D0406003040191]
Compatibilization of the partially miscible poly(vinylidene fluoride) (PVDF)/poly(styrene-co-acrylonitrile) (SAN) pair by a third homopolymer, i.e., poly(methyl methacrylate) (PMMA), was investigated in relation to cross section morphology, crystallization behaviors and hydrophilicity of the polyblends. Scanning electron microscopy showed a more regular and homogeneous morphology when more than 15 wt.% PMMA was incorporated. The samples presented only alpha phase regardless of PMMA content in the blend. As the PMMA content increased in the blends, the interactions between each component were enhanced, and the crystallization of PVDF was limited, leading to a decreasing of the crystallinity and the crystallite thickness. Besides, the hydrophilicity of PVDF was further improved by PMMA addition. The sample containing 15 wt.% PMMA showed a more hydrophilic property due to the more polar part of surface tension induced by PMMA addition. Observed from the cross section of the blends, the miscibility of partially miscible PVDF/SAN blends were efficiently improved by PMMA incorporation.
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