Novel polyion complex with interpenetrating polymer network of poly(acrylic acid) and partially protected poly(vinylamine) using N-vinylacetamide and N-vinylformamide
Novel polyion complex with interpenetrating polymer network of poly(acrylic acid) and partially protected poly(vinylamine) using N-vinylacetamide and N-vinylformamide
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DOI：
10.1016/j.polymer.2009.06.016
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发表时间：
2009-07
期刊：
影响因子：
4.6
通讯作者：
Hiroharu Ajiro;Yukie Takemoto;T. Asoh;M. Akashi
中科院分区：
文献类型：
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作者：
Hiroharu Ajiro;Yukie Takemoto;T. Asoh;M. Akashi
聚乙烯胺是与伯胺最简单的聚阳离子，用于与聚丙烯酸互穿聚合物网络（IPN）。氨基保护单体采用n -乙烯基甲酰胺（NVF）控制静电平衡。ipn的ph响应随水解条件和第二网络的丙烯酸（AAc）浓度而变化。第一个网络采用聚（n -乙烯基乙酰胺）-共聚（n -乙烯基甲酰胺）（4/6,mol/mol），然后用50%的酰胺基水解，第二个网络用0.25mol / l−1AAc聚合，在pH 7下形成了具有聚离子络合物的极度收缩的水凝胶，表明IPN中可获得可控数量的高活性伯胺。
Poly(vinylamine), the simplest polycation with primary amines, was applied to interpenetrating polymer networks (IPN) with poly(acrylic acid). N-Vinylformamide (NVF) was employed for amino-protected monomers to control electrostatic balance. pH-responsivities of IPNs varied, depending on the hydrolysis conditions and acrylic acid (AAc) concentration of the second network. Poly(N-vinylacetamide)-co-poly(N-vinylformamide) (4/6, mol/mol) was employed for the first network, subsequently hydrolyzed with 50% amide groups, and the second network was polymerized with 0.25molL−1AAc, extremely shrunken hydrogels with polyion complex were formed at pH 7, showing that the controlled amount of highly active primary amines are available in IPN.