| AM/NIPAM对P(NIPAM-co-AM)温敏凝胶性能的影响 |
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| 引用本文： | 黎亚丽,王潮霞.AM/NIPAM对P(NIPAM-co-AM)温敏凝胶性能的影响[J].精细化工,2013,30(3):259-263. |
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| 作者姓名： | 黎亚丽 王潮霞 |
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| 作者单位： | 江南大学纺织服装学院生态纺织教育部重点实验室,江苏无锡,214122 |
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| 基金项目： | 国家自然科学基金，333高层次人才培养工程，六大人才高峰高层次人才项目 |
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| 摘 要： | 以丙烯酰胺(AM)、N-异丙基丙烯酰胺(NIPAM)为单体,过硫酸铵(APS)-亚硫酸氢钠(SBS)为氧化-还原引发体系,N,N'-亚甲基双丙烯酰胺(BIS)为交联剂,制备了亲水型温敏凝胶P(NIPAM-co-AM)。研究了投料比m(AM)/m(NIPAM)对凝胶性能的影响。结果表明,随着凝胶体系中亲水单体AM比例的增大,共聚凝胶溶胀率、保水率、硬度均提高。当AM质量分数从0增大到100%时,凝胶硬度从84.929 g增为1 252.222 g。DSC表明,当AM质量分数从2%提高到10%时,凝胶LCST从38.61℃增加到57.95℃。随着AM比例降低,凝胶LCST向低温方向移动,相变范围温敏性越好。
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| 关 键 词： | 温敏凝胶 LCST N-异丙基丙烯酰胺 丙烯酰胺 自由基共聚 功能材料 |
Influence of Feed Composition of AM and NIPAM on the Properties of P (NIPAM-co-AM) Thermo-Responsive Gel |
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| LI Ya-li,WANG Chao-xia.Influence of Feed Composition of AM and NIPAM on the Properties of P (NIPAM-co-AM) Thermo-Responsive Gel[J].Fine Chemicals,2013,30(3):259-263. |
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| Authors: | LI Ya-li WANG Chao-xia |
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| Affiliation: | *(Key Laboratory of Science & Technology of Eco-Textile,Ministry of Education,College of Textiles & Clothing,Jiangnan University,Wuxi 214122,Jiangsu,China) |
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| Abstract: | Thermo-responsive hydrogels were synthesized from N-isopropylacrylamide(NIPAM) and acrylamide(AM) with N,N′-methylenebisacrylamide(BIS) as crosslinker,and ammonium potassium and sodium bisulfite as initiators.The effect of the change of feed composition of AM/NIPAM on the properties were studied.The results show that,with the increase of hydrophilic monomer AM,the swelling ratio,water retention and hardness of P(NIPAM-co-AM) are enhanced.The hardness increases from 84.929 g in absence of AM to 1 252.222 g when AM is 100%.According to DSC,when the dosage of AM increases from 2% to 10%,the LCST of P(NIPAM-co-AM) gel increases from 38.61 ℃ to 57.95 ℃.With the decrease of AM content,LCST of P(NIPAM-co-AM) gel declines,and the responsiveness is improved. |
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| Keywords: | thermo-responsive gel LCST N-isopropylacrylamide acrylamide radical copolymerization functional materials |
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