The Synthesis and Characteristic Properties of Poly(AAc-co-AAm)

摘要：

The copolymers of 10％ acrylic acid (AAc) and 90％ acryl amide (AA) were synthesized by free radical polymerization with 5％ ethylene glycol dimethacrylate (EGDMA) as a crosslinker. The basic physical feature such as density, fixed charge density, average molecular weight, equilibrium water contentment and crosslink density were studied. In this investigation, the equilibrium and kinetic experiments were performed under three different ionic strengths, the equilibrium behavior of the hydrogels was characterized by varying the designed stimulus and by measuring the weight of hydrogel disc using a high accuracy balance. The ionic strength of the solution was adjusted with NaCl and the buffer solution was phosphoric acid. Potentiometric titration was performed to investigate the quantity of dissociated H+. Last, diffusion coefficients of aqueous sodium chloride in water swollen cross-linked poly (AAc-co-AAm) membranes were studied. A self-planned cell was used for the measurement of NaCl diffusion coefficients.

关键词： Synthesis swelling basic feature pH-sensitive

作者: Zhu Xiufang Yang Ming Zhang Hongxia Nie Yujing

作者单位: Department of Material Engineering Hubei University of Automotive Technology, China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 534-538

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）