热膨胀温敏吸水树脂的合成及其吸水性能

摘要

以丙烯酰胺、丙烯酸和新型温敏大分子单体为原料,通过溶液聚合法制备了热膨胀型温敏吸水树脂(TSAR),其结构经IR表征.研究了TSAR在纯水和0.9％ NaCl溶液中不同温度条件下的溶胀率.结果表明,TSAR在纯水中和0.9％ NaCl溶液中都呈现热膨胀性能.%Thermoswelling sensitive water-absorbent resins (TSAR) were synthesized by solution polymerization of acrylamide, acrylic acid and thermo-responsive macromonomer. The structure was characterized by IR. The water-absorbent properties of TSAR were investigated at different temperature in pure water and 0.9% NaCl brine, respectively. The results showed that TSAR exhibited thermoswelling properties in pure water and 0.9% NaCl brine.