半互穿网络淀粉水凝胶的制备及溶胀性研究
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摘要
以玉米淀粉和丙烯酸为主要原料,过硫酸铵为引发剂,N,N-亚甲基双丙烯酰胺为交联剂,采用新型两步水溶液聚合法合成聚丙烯酸/玉米淀粉半互穿网络水凝胶,并对凝胶的结构和研究淀粉的用量、pH值对水凝胶溶胀性能的影响。研究表明:水凝胶具优越的溶胀性、pH敏感性和膨胀可逆性,使其可以应用于很多领域。
The polyacrylic acid salt/starch semi interpenetrating network hydrogel was synthesized by a new two-step aqueous solution polymerization method with corn starch and acrylic acid as the main raw material,ammonium persulfate as initiator and N,N-methylene double acrylamide as crosslinking agent.The effects of the amount of starch and pH on the swelling properties of hydrogels were studied.The hydrogels have good swelling properties,pH-sensitivity and swelling reversibility.so it can be used in many fields.
The polyacrylic acid salt/starch semi interpenetrating network hydrogel was synthesized by a new two-step aqueous solution polymerization method with corn starch and acrylic acid as the main raw material,ammonium persulfate as initiator and N,N-methylene double acrylamide as crosslinking agent.The effects of the amount of starch and pH on the swelling properties of hydrogels were studied.The hydrogels have good swelling properties,pH-sensitivity and swelling reversibility.so it can be used in many fields.
引文
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[10]张学文,白波何,云华,等.SBP/P(AA-co-AM)复合高吸水树脂的溶胀及尿素缓释性能研究[J].材料导报B:研究篇,2016,30(5):61-66.
[2]Liu Z Q,Yang Z P,Luo Y L.Swelling,pH sensitivity and mechanical properties of poly(acrylamide-co-sodium methacrylate)nano-composite hydrogels impregnated with carboxyl-functionalized carbon nanotubes[J].Poly Compos,2012,33(5):665-674.
[3]郭正潮,梁佳,刘文涛,等.DMDAAC-AM辐射接枝淀粉基水凝胶的制备与吸水性能研究[J].同位素.2012,25(2):90-93.
[4]Liu Z Q,Yang Z P,Luo Y L.Enhanced swelling and mechanical properties of P(AM-co-SMA)semi-IPN composite hydrogels by impregnation with PANI and MWNTs[J].Macromol Res,2013,21(4):376-384.
[5]孙慧,林建明,唐群委,等.聚丙烯酸盐/淀粉半互穿网络水凝胶的两步水溶液合成及性能表征[J].华侨大学学报(自然科学版).2009,30(1):45-52.
[6]杜峰,方显力,项尚林.淀粉改性聚丙烯酸盐营养型土壤保水剂的制备和应用[J].西北农林学报.2013,22(5):157-161.
[7]赵天勤,杜杰,张鹏,等.新型淀粉基pH值敏感水凝胶的微波法合成及性能表征[J].化工新型材料.2013,41(11):108-117.
[8]Huang Y,Yu H,Xiao C.pH-sensitive cationic guar gum/poly(acrylic acid)polyelectrolyte hydrogels:Swelling and in vitro drug release[J].Carboh Poly,2007,69(4):774–783.
[9]Lin H,Liu J,Zhang K,et al.Dynamic mechanical and swelling properties of maleated hyaluronic acid hydrogels[J].Carboh.Poly,2015 123(5):381-389.
[10]张学文,白波何,云华,等.SBP/P(AA-co-AM)复合高吸水树脂的溶胀及尿素缓释性能研究[J].材料导报B:研究篇,2016,30(5):61-66.