摘要
用顺丁烯二酸酐(MAH)对β-环糊精(β-CD)进行化学改性,合成出了一种新型功能性单体MAH-β-CD。以N,N'-亚甲基双丙烯酰胺(BIS)为交联剂,过硫酸铵(APS)为引发剂,通过氧化还原自由基引发单体MAH-β-CD、N-异丙基丙烯酰胺(NIPA)及阴离子单体丙烯酸钠(SA)共聚,合成出一种新型水凝胶。用核磁共振、红外光谱对水凝胶进行了表征。溶胀研究结果表明,该水凝胶具有较好的pH及温度敏感性。
A novel functional monomer (MAH-β-CD) containing vinyl and carboxyl groups was synthesized by reaction of β-cyclodextrin (β-CD) with maleic anhydride (MAH). A new hydrogel was prepared through copolymerization of MAH-β-CD with N-isopropylacrylamide (NIPA) and sodium acrylate (SA) using ammonium persulfate (APS) as the initiator and N,N'-methylene-bisacrylamide (Bis) as the crosslinker in aqueous solution. The MAH-β-CD monomer and the gels obtained were characterized using IR spectra and ^13C NMR, Results from a study on equilibrium swelling ratios (ESR) indicated that the hydrogels had good sensitivity to pH values and temperature.
出处
《精细化工中间体》
CAS
2007年第3期54-57,共4页
Fine Chemical Intermediates