Nanoscale homogeneity of silica-poly(vinyl alcohol) membranes by controlled cross-linking via sol-gel reaction in acidified and hydrated ethanol

Chaudhri Sanjay G.; Rajai Bhavika H.; Singh Puyam S.

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Nanoscale homogeneity of silica-poly(vinyl alcohol) membranes by controlled cross-linking via sol-gel reaction in acidified and hydrated ethanol

机译：在酸化和水合乙醇中通过溶胶 - 凝胶反应控制交联的纳米型聚（乙烯醇）膜的纳米级均匀性

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Organic-inorganic hybrid membranes in which nanoscale hybrid domains create preferential pathways for selective permeation exhibit excellent performance in separation processes. Herein, a sol-gel reaction synthesis route in acidified and hydrated ethanol to prepare a silica-poly(vinyl alcohol) hybrid membrane of nanoscale homogeneity is reported. A Si-29 NMR study was performed on the membrane samples to probe the connectivity of SiO4 tetrahedra in the cross-linking hybrid networks while the small-angle scattering study revealed the nanostructure of the silica-polymer hybrid. TEM, DSC, IR, TGA, XRD and swelling studies were performed to study other physico-chemical properties of the membrane. The hybrid membrane exhibited superior water permeability (96 L m(-2) h(-1) mu m) to other reported membranes in the pervaporation desalination of saline water of 2000 ppm NaCl.

机译：有机 - 无机杂交膜，其中纳米级杂交结构域为选择性渗透产生优先途径，在分离过程中表现出优异的性能。这里，报道了酸化和水合乙醇中的溶胶 - 凝胶反应合成途径，以制备纳米型均匀性的二氧化硅 - 聚（乙烯醇）杂化膜。在膜样品上进行Si-29 NMR研究，以探测SiO 4四面体在交联杂交网络中的连接，而小角度散射研究揭示了二氧化硅聚合物杂交的纳米结构。进行TEM，DSC，IR，TGA，XRD和溶胀研究以研究膜的其他物理化学性质。杂交膜在2000ppm NaCl的盐水的普促水溶液中表现出优异的透水性（96μm（-2）h（-2）h（-1）μm）。

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《RSC Advances》 |2015年第81期|共8页
作者
Chaudhri Sanjay G.; Rajai Bhavika H.; Singh Puyam S.;
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CSIR Cent Salt &

Marine Chem Res Inst RO Membrane Discipline Bhavnagar 364002 Gujarat India;

CSIR Cent Salt &

Marine Chem Res Inst RO Membrane Discipline Bhavnagar 364002 Gujarat India;

CSIR Cent Salt &

Marine Chem Res Inst RO Membrane Discipline Bhavnagar 364002 Gujarat India;

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正文语种 eng
中图分类化学;
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1. Nanoscale homogeneity of silica-poly(vinyl alcohol) membranes by controlled cross-linking via sol-gel reaction in acidified and hydrated ethanol [J] . Chaudhri Sanjay G., Rajai Bhavika H., Singh Puyam S. RSC Advances . 2015,第81期

机译：在酸化和水合乙醇中通过溶胶 - 凝胶反应控制交联的纳米型聚（乙烯醇）膜的纳米级均匀性
2. Cross-linking of poly(vinyl alcohol) with N,N '-methylene bisacrylamide via a radical reaction to prepare pervaporation membranes [J] . Li Junjun, Zhang Lin, Gu Jin, RSC Advances . 2015,第26期

机译：通过自由基反应将聚乙烯醇与N，N'-亚甲基双丙烯酰胺交联以制备渗透膜
3. Hard coatings on polycarbonate plate by sol-gel reactions of melamine derivative, poly(vinyl alcohol), and silicates [J] . Young Jae Shin, Do Hyeon Yang, Mee Hye Oh Journal of industrial and engineering chemistry . 2009,第2期

机译：三聚氰胺衍生物，聚乙烯醇和硅酸盐的溶胶-凝胶反应在聚碳酸酯板上形成硬涂层
4. Highly water selective mixed matrix blend membranes of poly(vinyl alcohol)-poly(vinyl pyrolidone) incarporating phosphomolybdic acid for application in pervaporation assisted esterification of acetic acid with ethanol [C] . G.S. Gokavi, M.G. Mali, U.V. Desai Euromembrane Conference . 2013

机译：高度水选择性混合基质混合膜的聚（乙烯醇）-poly（乙烯基吡咯烷酮）磷钼酸，用于普及辅助磷酸溶解的乙酸乙酸酯化
5. Grafting reactions in the emulsion polymerization of vinyl acetate using poly(vinyl alcohol) as emulsifier. [D] . Budhlall, Bridgette Maria S. 2000

机译：使用聚乙烯醇作为乳化剂的醋酸乙烯酯乳液聚合中的接枝反应。
6. Effect of Cross-Linking on the Mechanical and Thermal Properties of Poly(amidoamine) Dendrimer/Poly(vinyl alcohol) Hybrid Membranes for CO2 Separation [O] . Shuhong Duan, Teruhiko Kai, Takashi Saito, 2014

机译：交联对聚（酰胺基胺）树枝状大分子/聚乙烯醇杂化膜机械和热学性能的影响
7. Highly Water Selective Mixed Matrix Blend Membranes of Poly(Vinyl Alcohol)–Poly(Vinyl Pyrolidone) Incarporating Phosphomolybdic Acid for Application in Pervaporation Assisted Esterification of Acetic Acid with Ethanol [O] . Gokavi G.S., Mali M.G., Desai U.V., 2012

机译：聚（乙烯醇）-聚（乙烯基吡咯烷酮）磷酸化磷钼酸的高水选择性混合基质共混膜，用于乙酸与乙醇的全蒸发辅助酯化中
8. Three Methods for In Situ Cross-Linking of Polyvinyl Alcohol Films for Application as Ion-Conducting Membranes in Potassium Hydroxide Electrolyte [R] . Warren H. Philipp, Li-Chen Hsu 1979

机译：聚乙烯醇薄膜原位交联的三种方法，用作氢氧化钾电解质中的离子导电膜

Nanoscale homogeneity of silica-poly(vinyl alcohol) membranes by controlled cross-linking via sol-gel reaction in acidified and hydrated ethanol

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