摘要
在不同浓度的氯化钠水溶液中,成功制备了聚(N-异丙基丙烯酰胺-co-甲基丙烯酸)[P(NIPAM-co-MAA)]水凝胶,用红外光谱仪(FT-IR)、扫描电镜(SEM)、测溶胀比对凝胶性能进行了表征,讨论了凝胶内部微观结构的形成机理,以及它们对凝胶性能的影响。发现当氯化钠浓度大于0.3 mol·L-1时凝胶内部形成孔洞网络结构,随着其浓度的增加孔洞网络结构越来越明显,同时凝胶表现出较快的响应速率。
The poly （N-isopropylacrylamide-co-acrylic acid） [P（NIPAM-co-AAc）] hydrogels were successfully prepared in aqueous NaCl solutions with different concentration. The characteristics of the resulting hydrogels was investigated with Fourier trans-form infrared spectroscopy （FT-IR）, scanning electron microscopy（SEM） and measuring swelling ratio.The influence of internal microstructure on the characteristics of the resulting hydrogels and their formation mechanism were studied. The results showed that the pore network was informed when NaCl concentration raised to 0.3 mol/L.With the NaCl concentration increased in the polymerization medium, the pores in the hydrogels were informed more obviously. The hydrogels exhibited fast response rates.
出处
《化工技术与开发》
CAS
2015年第5期25-28,21,共5页
Technology & Development of Chemical Industry
