摘要本论文对聚甲基丙烯酰氧乙基三甲基氯化铵（PDMC）的较佳制备反应工艺条件进行了初步探究。在本课题组已有研究的基础上，以减压蒸馏后的DMC工业单体为原料，采用氧化还原引发体系，考察了单体起始质量分数w(DMC)、引发剂用量m(NaHSO3):m(DMC)，m(K2S2O8):m(DMC)，助剂用量m(Na4EDTA):m (DMC)和聚合反应温度（T1、T2和T3）对产物特征黏度值的影响。初步得到Poly(DMC)的较佳制备工艺条件为：w(DMC)=70%，m(K2S2O8):m(DMC) =0.32%，m(NaHSO3):m(DMC)=0.64%，m(Na4EDTA):m(DMC)=0.0071%，T1=44.0℃，T2=50.0℃，T3=70.0℃，对应产物的特征黏度值为0.568dL/g，转化率为96.1%。此外，对DMC单体及其均聚物进行了FTIR表征。以上研究，为进一步优化产物制备工艺奠定了一定基础。64135

毕业论文关键词甲基丙烯酰氧乙基三甲基氯化铵，均聚反应，工艺，特征黏度，转化率，表征 

毕业设计说明书（论文）外文摘要

Title       The Preliminary Study on the Preparation of PDMC            

Abstract The preparation conditions of Poly-methacryloyloxyethyl trimethyl ammonium chloride(PDMC) were studied in this thesis. Based on the previous work of research group, using industry product methacryloyloxyethyl trimethyl ammonium chloride (DMC) after distillation as raw material, redox system as the initiator, the effects of the w(DMC), the amount of the initiator m(NaHSO3):m(DMC)，m(K2S2O8):m(DMC)，the amount of additives m(Na4EDTA):m(DMC) and the polymerization temperature (T1, T2 and T3) on the intrinsic viscosity of PDMC were investigated respectively. The better preparation conditions of poly(DMC) were obtained: w(DMC)=70%, m(K2S2O8):m(DMC) =0.32%，m(NaHSO3):m(DMC)=0.64%，m(Na4EDTA): m(DMC)=0.0071%，T1=44.0℃，T2=50.0℃ and T3=70.0℃, and the corresponding intrinsic viscosity of product PDMC was 0.568dL/g , monomer conversion was 96.1%. Meanwhile, the FTIR spectra of DMC and PDMC were determined. Those results could be a foundation for the further study of the obtaining optimum preparation condition of PDMC.

Keywords methacryloxyethyltrimethyl ammonium chloride, homo-polymerization， process，intrinsic viscosity , conversion rate, characterized

 1 引言 1

 1.1 甲基丙稀酰氧乙基三甲基氯化铵及其聚合物 1

 1.1.1  结构与性质 1

 1.1.2  DMC聚合物的合成方法 2      

 1.1.3  DMC单体的均聚物制备工艺研究情况 2    

 1.2 存在问题 4

 1.3 研究内容及意义 5

 2 实验原理 6

  2.1  单体聚合的历程 6

 2.2  引发剂种类 6

 2.3  聚合反应速率方程 6

 2.4  产物平均聚合度的倒数方程 7

 3 方案设计 8

 3.1  研究内容与思路 8

 3.2  方案设计思路图 8

 3.3  结果评价 9

 4 实验部分 10

 4.1  仪器和药品 10

 4.2  实验基本操作步骤 12

 5 实验结果与讨论