以丙烯酰胺(AM)和自制疏水大单体(MM)及十二烷基苯磺酸钠(SDBS)为原料,利用胶束共聚的方法,合成了一系列疏水缔合水凝胶.利用傅里叶变换红外光谱对凝胶结构进行了表征,并对凝胶的溶胀行为进行了测试.结果表明,室温下,水凝胶的溶胀率随疏水大单体含量的增加而增大,溶胀达到平衡所需时间缩短.随温度的升高,溶胀所需要的时间缩短;随SDBS浓度的增大,凝胶的溶胀率降低;1％的NaCl水溶液中,凝胶的最大溶胀率显著减小,继续增大NaCl水溶液的浓度,最大溶胀率无明显改变.由于起物理交联作用胶束的缔合和解缔合作用使凝胶具有良好的重塑性能和自愈合性能.
参考文献
| [1] | Okumura Y.;Ito K. .The polyrotaxane gel: A topological gel by figure-of-eight cross-links[J].Advanced Materials,2001(7):485-487. |
| [2] | Jian Ping Gong;Yoshinori Katsuyama;Takayuki Kurokawa;Yoshihito Osada .Double-Network Hydrogels with Extremely High Mechanical Strength[J].Advanced Materials,2003(14):1155-1158. |
| [3] | Guoqing Jiang;Chang Liu;Xiaoli Liu .Construction and Properties of Hydrophobic Association Hydrogels with High Mechanical Strength and Reforming Capability[J].Macromolecular materials and engineering,2009(12):815-820. |
| [4] | Jiang, GQ;Liu, C;Liu, XL;Chen, QR;Zhang, GH;Yang, M;Liu, FQ .Network structure and compositional effects on tensile mechanical properties of hydrophobic association hydrogels with high mechanical strength[J].Polymer: The International Journal for the Science and Technology of Polymers,2010(6):1507-1515. |
| [5] | 姜国庆,刘凤岐.高强度疏水缔合水凝胶的交联网络结构形成机理[J].功能高分子学报,2011(01):43-48. |
| [6] | G. Scheltjens;M.M. Diaz;J. Brancart;G. Van Assche;B. Van Mele .A self-healing polymer network based on reversible covalent bonding[J].Reactive & functional polymers,2013(2):413-420. |
| [7] | 姜国庆,刘凤岐.高强度疏水缔合水凝胶的重塑性能机理[J].高分子材料科学与工程,2012(03):100-103. |
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