Network Nano-Porous Poly(vinylidene fluoride-co-hexafluoropropene) Membranes by Nano-Gelation Assisted phase Separation of Poly(vinylidene fluoride-co-hexafluoropropene)/Poly(methyl methacrylate) Blend Precursor in Toluene
學年 101
學期 1
出版（發表）日期 2012-11-01
作品名稱 Network Nano-Porous Poly(vinylidene fluoride-co-hexafluoropropene) Membranes by Nano-Gelation Assisted phase Separation of Poly(vinylidene fluoride-co-hexafluoropropene)/Poly(methyl methacrylate) Blend Precursor in Toluene
作品名稱（其他語言）
著者 Lin, Dar-Jong; Lin, Chun-Liang; Guo, Shyuan-Yu
單位 淡江大學化學工程與材料工程學系
出版者 Washington: American Chemical Society
著錄名稱、卷期、頁數 Macromolecules 45(21), pp.8824–8832
摘要 Network nanoporous poly(vinylidene fluoride-co-hexafluoropropene (PVDF–HFP) membrane formation mechanism via poly(methyl methacrylate) (PMMA) leaching from PVDF–HFP/PMMA blend film was studied. The blends of PVDF–HFP with PMMA comprise miscible amorphous phase much larger in quantity than those of poly(vinylidene fluoride) (PVDF) with PMMA. The residual PVDF–HFP crystalline phase which may present in very small fraction was characterized by SAXS, which permitted estimation of the critical composition of phase boundary of blend. The FESEM micrograph revealed the network morphology of the membranes being composed of interconnected tiny sheaves of recrystallized PVDF–HFP. Nanogelation mechanism is proposed to describe the crystallization of disentangled PVDF–HFP chain segments under spatial confinement during PMMA leaching from amorphous solution phase in blend film. The crystallinities of membranes determined by DSC are found to be consistent with the theoretically calculated values. Present research suggested a novel approach for the formation of network nanoporous membranes from semicrystalline polymers.
關鍵字
語言 en_US
ISSN 0024-9297 1520-5835
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Lin, Dar-Jong
審稿制度 是
國別 USA
公開徵稿
出版型式 紙本 電子版
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