羧甲基纤维素与丙烯酰胺接枝共聚及共聚物的性能  

Study on Preparation and Properties of Poly(AM-co-CMC)

作　　者：杨芳[1] 黎钢[1] 任凤霞[1] 禹雪晴[1] 王桂香[1] 朱树兵[2] 

机构地区：[1]河北工业大学应用化学系,天津300130 [2]新疆库尔勒塔里木油田分公司,新疆库尔勒841000

出　　处：《高分子材料科学与工程》2007年第4期78-81,85,共5页Polymer Materials Science & Engineering

基　　金：河北省自然科学基金资助项目(203013)

摘　　要：研究了羧甲基纤维素-丙烯酰胺接枝共聚反应。优化反应条件为:单体浓度20%,引发剂用量300m g/L,初始温度40℃,初始pH值8。通过红外光谱分析、热分析、X射线衍射分析对接枝共聚物结构进行了验证,并对接枝共聚物特性黏数和大分子回旋半径进行了研究。实验得出接枝共聚物回旋半径随聚丙烯酰胺回旋半径与羧甲基纤维素回旋半径变化的关系式,同时证明接枝共聚物在特性黏数、抗温及抗盐性质方面均优于羧甲基纤维素和聚丙烯酰胺。Synthesis on the graft copolymerization of carboxymethylcellulose （CMC） with acrylamide （AM） has been studied in this paper. The preparation conditions were optimized as follows： monomer mass fraction is 20%; initiator concentration is 300 mg/L; initial temperature is 40 ℃ ; initial pH value is 8. The structure of copolymers was fully approved by means of the FT-IR analysis, thermal analysis and X-ray diffraction analysis. The intrinsic viscosity and the radius of gyration of polymers were studied in this paper, and the equation on the radius of gyration of graft copolymers influenced by the radius of gyration of polyacrylamide （PAM） and CMC was also obtained, furthermore, it is verified that the viscosity, salt-resistance and heat-resistance of graft copolymers have improved remarkably than that of CMC and PAM.

关 键 词：羧甲基纤维素 丙烯酰胺 接枝共聚 特性黏数 回旋半径 

分 类 号：TQ325.7[化学工程—合成树脂塑料工业]