Synthesis of poly(vinylidene fluoride) (PVdF)/silica hybrids having interpenetrating polymer network structure by using crystallization between PVdF chains
Synthesis of poly(vinylidene fluoride) (PVdF)/silica hybrids having interpenetrating polymer network structure by using crystallization between PVdF chains
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DOI：
10.1002/pola.20833
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发表时间：
2005-08
期刊：
影响因子：
--
通讯作者：
Tomoki Ogoshi;Y. Chujo
中科院分区：
文献类型：
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作者：
Tomoki Ogoshi;Y. Chujo
采用原位互穿聚合物网络(IPN)方法制备了高透明、均一的聚偏氟乙烯(PVDF)/二氧化硅杂化材料。物理交联产生的PVDF凝胶和溶胶-凝胶过程中形成的硅胶同时形成的PVDF凝胶阻止了PVDF在硅胶基质中的聚集。采用二甲基甲酰胺和γ-丁内酯共溶剂体系，实现了聚偏氟乙烯链间的物理交联。得到的PVDF/SiO_2杂化材料具有物理的PVDF凝胶和硅胶的缠绕结合，称为“完全IPN”结构。差示扫描量热仪(DSC)测试证实了硅胶基质中PVDF链之间的物理交联。用扫描电子显微镜(SEM)和敲击模式原子力显微镜(TM-AFM)研究了PVDF与二氧化硅相间的相容性。©2005 Wiley期刊公司，J Polym Sci Part A：Polym Chem 43：3543-3550,2005
High transparent and homogeneous poly(vinylidene fluoride) (PVdF)/silica hybrids were obtained by using an in-situ interpenetrating polymer network (IPN) method. The simultaneous formation of PVdF gel resulting from the physical cross-linking and silica gel from sol–gel process prevented the aggregation of PVdF in silica gel matrix. To form the physical cross-linking between PVdF chains, the cosolvent system of dimethylformaide (DMF) and γ-butyrolactone was used. The obtained PVdF/silica hybrids had an entangled combination of physical PVdF gel and silica gel, which was called a “complete- IPN” structure. The physical cross-linking between PVdF chains in silica gel matrix was confirmed by differential scanning calorimetry (DSC) measurements. The miscibility between PVdF and silica phase was examined by scanning electron microscopy (SEM) and tapping mode atomic force microscopy (TM-AFM) measurements. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 3543–3550, 2005