广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2014年
18期
71-73,84
,共4页
陈洪事%张薇%吴道江%陈广辉%韦晓云%王毓
陳洪事%張薇%吳道江%陳廣輝%韋曉雲%王毓
진홍사%장미%오도강%진엄휘%위효운%왕육
水凝胶%温敏性%pH敏感%双丙酮丙烯酰胺%溶胀性能
水凝膠%溫敏性%pH敏感%雙丙酮丙烯酰胺%溶脹性能
수응효%온민성%pH민감%쌍병동병희선알%용창성능
hydrogel%temperature-sensitive%pH-sensitive%diacetone acrylamide%swelling property
以丙烯酰胺、丙烯酸和双丙酮丙烯酰胺为原料,以N,N'-亚甲基双丙烯酰胺为交联剂,2-酮戊二酸为引发剂,采用光引发聚合方法制备出系列新型温度和pH响应型水凝胶。考察了交联剂用量、水凝胶组成、温度和pH值对凝胶溶胀性能的影响。结果表明,随交联剂用量的增加,凝胶的溶胀率减小,随凝胶组成中AA含量的增加,凝胶的溶胀率增加。凝胶的溶胀率随温度的升高而减小,随pH值的增大而增加,表现出显著的温敏和pH敏感性。
以丙烯酰胺、丙烯痠和雙丙酮丙烯酰胺為原料,以N,N'-亞甲基雙丙烯酰胺為交聯劑,2-酮戊二痠為引髮劑,採用光引髮聚閤方法製備齣繫列新型溫度和pH響應型水凝膠。攷察瞭交聯劑用量、水凝膠組成、溫度和pH值對凝膠溶脹性能的影響。結果錶明,隨交聯劑用量的增加,凝膠的溶脹率減小,隨凝膠組成中AA含量的增加,凝膠的溶脹率增加。凝膠的溶脹率隨溫度的升高而減小,隨pH值的增大而增加,錶現齣顯著的溫敏和pH敏感性。
이병희선알、병희산화쌍병동병희선알위원료,이N,N'-아갑기쌍병희선알위교련제,2-동무이산위인발제,채용광인발취합방법제비출계렬신형온도화pH향응형수응효。고찰료교련제용량、수응효조성、온도화pH치대응효용창성능적영향。결과표명,수교련제용량적증가,응효적용창솔감소,수응효조성중AA함량적증가,응효적용창솔증가。응효적용창솔수온도적승고이감소,수pH치적증대이증가,표현출현저적온민화pH민감성。
Temperature and pH dual stimuli -responsive hydrogels were synthesized by compolymerization of acrylamide, acrylic acid, and diacetone acrylamide using UV polymerization method , in the presence of N,N'-methylene bisacrylamide as cross linker , and 2-ketoglutaric acid as initiator.The effects of the amount of the cross linker and the composition of hydrogel on swelling rate were investigated.The swelling properties were studied under various temperature and pH conditions.The results showed that swelling rate decreased with increasing cross linker.However , the swelling rate increased with an increase in AA content.The swelling properties of hydrogels can be significantly affected by varying the temperature and pH conditions.The resultant hydrogel showed temperature -, pH-sensitive features.