Acrylonitrile/N-[4-（aminosulfonyl）phenyl]acrylamide （AN/ASPAA） copolymers were synthesized and used as a host of lithium ion conducting electrolytes. The composition, molecular weight and molecular weight distribu...Acrylonitrile/N-[4-（aminosulfonyl）phenyl]acrylamide （AN/ASPAA） copolymers were synthesized and used as a host of lithium ion conducting electrolytes. The composition, molecular weight and molecular weight distribution of AN/ASPAA copolymers were determined, and the influence of copolymer composition on the glass temperature of AN/ASPAA copolymers and the ion conductivity of electrolytes were investigated. The molecular weights of AN/ASPAA copolymers were lower than those of AN and ASPAA homopolymers due to the cross-termination reaction. The glass temperatures of AN/ASPAA copolymers increased as the molar fraction of ASPAA units in copolymers increased. The lithium ion conductivities of the polymer electrolytes increased initially as the molar fraction of ASPAA units in copolymers increased, and a maximum conductivity was achieved when the molar fraction of ASPAA in the copolymer was 16.8%.展开更多
N-[4-(aminosulfonyl)phenyl]acrylamide (ASPAA) was synthesized through the reaction of acryloyl chloride with sulfanilamide,and copolymerized with acrylonitrile (AN) and methyl methacrylate (MMA),respectivety,in DMF so...N-[4-(aminosulfonyl)phenyl]acrylamide (ASPAA) was synthesized through the reaction of acryloyl chloride with sulfanilamide,and copolymerized with acrylonitrile (AN) and methyl methacrylate (MMA),respectivety,in DMF solvent using benzoyl peroxide as initiator at(70±0.5)℃.The copolymer composition was determined by using elemental analysis and the reactivity ratios of ASPAA/AN and ASPAA/MMA copolymerization systems were calculated by employing the Fineman-Ross and the Kelen-Tudos methods.The values of r 1 and r 2 obtained by the two methods fitted well with each other, i.e.r 1(ASPAA)=1.43,r 2(AN)=0.44 by Fineman-Ross method and r 1(ASPAA)=1.39,r 2(AN)=0.43 by Kelen-Tudos method for ASPAA/AN copolymerization system,and r 1(ASPAA)=0.88,r 2(MMA)=1.42 by Fineman-Ross method and r 1(ASPAA)=0.83,r 2(AN)=1.35 by Kelen-Tudos method for ASPAA/MMA copolymerization system.展开更多
以丙烯酸(AA)、丙烯酰胺(AM)、丙烯酸羟乙酯(HEMA)为单体、N,N′ 亚甲基双丙烯酰胺为交联剂、过硫酸铵/亚硫酸氢钠为氧化还原引发剂、Span80/Tween80为复合悬浮分散剂,采用反相悬浮聚合法合成了AA AM HEMA三元共聚高吸水性树脂。研究... 以丙烯酸(AA)、丙烯酰胺(AM)、丙烯酸羟乙酯(HEMA)为单体、N,N′ 亚甲基双丙烯酰胺为交联剂、过硫酸铵/亚硫酸氢钠为氧化还原引发剂、Span80/Tween80为复合悬浮分散剂,采用反相悬浮聚合法合成了AA AM HEMA三元共聚高吸水性树脂。研究了单体用量、分散剂用量、油水比和粒径等对树脂性能的影响。用TGA和DSC对树脂的保水性和脱水动力学进行了研究,IR分析证实所合成的树脂为丙烯酸-丙烯酰胺-丙烯酸羟乙酯三元共聚物。展开更多
文摘Acrylonitrile/N-[4-（aminosulfonyl）phenyl]acrylamide （AN/ASPAA） copolymers were synthesized and used as a host of lithium ion conducting electrolytes. The composition, molecular weight and molecular weight distribution of AN/ASPAA copolymers were determined, and the influence of copolymer composition on the glass temperature of AN/ASPAA copolymers and the ion conductivity of electrolytes were investigated. The molecular weights of AN/ASPAA copolymers were lower than those of AN and ASPAA homopolymers due to the cross-termination reaction. The glass temperatures of AN/ASPAA copolymers increased as the molar fraction of ASPAA units in copolymers increased. The lithium ion conductivities of the polymer electrolytes increased initially as the molar fraction of ASPAA units in copolymers increased, and a maximum conductivity was achieved when the molar fraction of ASPAA in the copolymer was 16.8%.
文摘N-[4-(aminosulfonyl)phenyl]acrylamide (ASPAA) was synthesized through the reaction of acryloyl chloride with sulfanilamide,and copolymerized with acrylonitrile (AN) and methyl methacrylate (MMA),respectivety,in DMF solvent using benzoyl peroxide as initiator at(70±0.5)℃.The copolymer composition was determined by using elemental analysis and the reactivity ratios of ASPAA/AN and ASPAA/MMA copolymerization systems were calculated by employing the Fineman-Ross and the Kelen-Tudos methods.The values of r 1 and r 2 obtained by the two methods fitted well with each other, i.e.r 1(ASPAA)=1.43,r 2(AN)=0.44 by Fineman-Ross method and r 1(ASPAA)=1.39,r 2(AN)=0.43 by Kelen-Tudos method for ASPAA/AN copolymerization system,and r 1(ASPAA)=0.88,r 2(MMA)=1.42 by Fineman-Ross method and r 1(ASPAA)=0.83,r 2(AN)=1.35 by Kelen-Tudos method for ASPAA/MMA copolymerization system.
文摘 以丙烯酸(AA)、丙烯酰胺(AM)、丙烯酸羟乙酯(HEMA)为单体、N,N′ 亚甲基双丙烯酰胺为交联剂、过硫酸铵/亚硫酸氢钠为氧化还原引发剂、Span80/Tween80为复合悬浮分散剂,采用反相悬浮聚合法合成了AA AM HEMA三元共聚高吸水性树脂。研究了单体用量、分散剂用量、油水比和粒径等对树脂性能的影响。用TGA和DSC对树脂的保水性和脱水动力学进行了研究,IR分析证实所合成的树脂为丙烯酸-丙烯酰胺-丙烯酸羟乙酯三元共聚物。
