论文部分内容阅读
以二甲基二烯丙基氯化铵(DMDAAC)、甲基丙烯酰氧乙基三甲基氯化铵(DMC)和衣康酸(IA)为共聚合单体,以过硫酸钾-亚硫酸氢钠作氧化还原引发剂,采用膨胀计测定共聚合动力学速率方程和表观活化能,用红外光谱(FT-IR)、热失重分析(TGA)和差示热扫描(DSC)表征两性高分子絮凝剂p(DMDAAC-co-DMC-co-IA)。共聚合热力学计算表明,在T<820.5 K的条件范围内,共聚合自由能变化ΔG<0。结果显示,共聚合速率方程为Rp∝k[DMDAAC]1.43[DMC]1.36[IA]0.97[引发剂]1.5,表观活化能Ea=33.3 k J/mol。
Using dimethyldiallylammonium chloride (DMDAAC), methacryloyloxyethyltrimethylammonium chloride (DMC) and itaconic acid (IA) as copolymerized monomers, potassium persulfate - Sodium bisulfate was used as redox initiator. The kinetic equation of rate of copolymerization and apparent activation energy were measured with a dilatometer. The properties of both sexes were characterized by FT-IR, TGA and DSC. Polymer flocculant p (DMDAAC-co-DMC-co-IA). The copolymerization thermodynamic calculation shows that the free energy of copolymerization changes by ΔG <0 under the condition of T <820.5K. The copolymerization rate equation was Rpαk [DMDAAC] 1.43 [DMC] 1.36 [IA] 0.97 [initiator] 1.5, and the apparent activation energy Ea was 33.3 kJ / mol.