The Interpenetrating network superabsorbent resin [PVA/CTS/P(AA-AMPS]was synthesized by aqueous solution polymerization method,used acrylic acid(AA) and 2-acrylamido-2-methylpropane sulfonic acid as monomers,poly(vinyl alcohol)(PVA) as synthesized polymer,chitosan(CTS) as natural polymer,N,N′-methylenebisacrylamide as crosslinker and potassium persulfate as initiator.The structure and morphology of PVA/CTS/P(AA-AMPS was characterized,respectively.Meanwhile,the effects of content of crosslinker,initiator,chitosan and PVA on the absorbency of the PVA/CTS/P(AA-AMPS) were investigated in details.The absorbency of the PVA/CTS/P(AA-AMPS) was up to 1800g/g in distilled water and 110g/g in 0.9wt% NaCl solution.Under the condition of exposure to air for 8 days,the moisture absorption of PVA/CTS/P(AA-AMPS) was lower than 87.5% of the single network SAR and PVA/CTS/P(AA-AMPS) had superior absorbency capacity in various saline solutions with different cations(Na+,Ca2+,Fe3+).
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基金资助
国家自然科学基金(51203127);湖北省教育厅优秀中青年项目(20121509);武汉市科技局青年科技晨光计划项目(201050231049);绿色化工过程省部共建教育部重点实验室开放基金项目(GCP201003);武汉工程大学科学研究基金(10092012)
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