一种温敏性酸液稠化剂的合成及性能研究

Synthesis of An Acid Thickening Agent with Stable Temperature-sensitive and Performance Evaluation

摘要:

将丙烯酰胺（AM）、甲基丙烯酰氧乙基三甲基氯化铵（DMC）及带长链温敏基团的烯丙基聚氧乙烯醚（APEG）进行自由基共聚，制备出一种新型温敏性酸液稠化剂P(AM-DMC-APEG)，并得到最佳合成条件：单体浓度40%，单体配比1:20：2（APEG：AM：DMC），引发剂浓度0.08%，聚合温度70℃，聚合时间3.5h。采用红外光谱和静态光散射对P(AM-DMC-APEG)的分子结构与分子量进行表征；并对稠化剂的温敏性能和缓速性能作出评价。结果表明，本研究所合成的稠化剂P（AM-DMC-APEG）的温敏性能稳定，并具有良好的缓速效果。

Abstract:

An acid thickening agent P(AM-DMC-APEG) was synthesized by acrylamide, methacryloxyethyltrimethyl ammonium chloride and allyl polyoxyethylene ether that was with a long chain temperature-sensitive group. The optimal conditions were as follows: monomer concentration 40%, monomer ratio 1:20 :2(APEG:AM:DMC),initiator concentration 0.08%, polymerization temperature 70℃, polymerization time 3.5h. Then molecular structures and molecular weight were characterized respectively by infrared spectrum and static light scattering. After evaluation on temperature sensibility and retarding performance, the results showed that the synthetic P(AM-DMC-APEG) presented good temperature sensibility and retarding performance.