Synthesis and characterization of modified poly(aspartic acid)/poly(acrylic acid-acrylamide) interpenetrating network absorbent resin

被引：0
|
作者：
Hu D. [1 ]
Li Q. [1 ]
Zhao Y. [1 ]
Jia Z. [1 ]
Shi H. [1 ]
Chen X. [1 ]
机构：
[1] College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan
来源：
Zhao, Yansheng (zhaoyansheng@tyut.edu.cn) | 2016年 / Sichuan University卷 / 32期
关键词：
Absorbent resin; Interpenetrating polymer networks; Poly(acrylic acid-acrylamide); Poly(aspartic acid); Sensitivity;
D O I：
10.16865/j.cnki.1000-7555.2016.10.006
中图分类号：
学科分类号：
摘要：
Modified poly(aspartic acid)/poly(Acrylic acid-acrylamide) interpenetrating network absorbent resin (IPNAP) based on polysuccinimide grafted with γ-aminpropyltriethoxysilane (KH550) (KPSI), acrylic acid (AAc) and acrylamide (AM) as raw materials, potassium persulfate (KPS) as free radical initiator, N, N'-methylenebisacrylamide (MBA) as crosslinker, was synthesized by a simple one-step method in an aqueous system. Effects of composition on the absorbing properties were investigated and when the mass ratio of modified polysuccinimide (KPSI) to AAc-AM is 1:2, AM to AAc-AM is 1:5, swelling ratios of IPNAP prepared in distilled water and physiological saline reaches 713.5 g/g and 145.4 g/g, respectively. The results of swelling behaviors in various mediums show that IPNAP has remarkable temperature-, pH-, and salt-sensitivities. The structure of the resin prepared was studied by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Results indicate that IPNAP prepared is composed of modified poly(aspartic acid) (KPAap) and P(AAc-AM), the incorporation of P(AAc-AM) significantly improves the pore structure of the resin, and IPNAP has better thermal stability than KPAsp. © 2016, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：30 / 35
页数：5
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