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摘要:
The kinetics of free-radical crosslinking co-polymerization(FRCCP)of acrylic acid(AA)with both methacrylic acid(MA)(PAMA hydrogel)and maleic acid(MAL)(PAMAL hydrogel)was investigated under the conditions of isothermal conventional heating(CH)and under the conditions of microwave heating(MWH)with controlled cooling.The kinetics curves of FRCCP of PAMA and PAMAL hydrogels under the conditions of CH are described with the kinetics model of second order chemical reaction,whereas the kinetics curves under the conditions of CH are described with the kinetics model of Polany-Winger.It is proved that MWH leads to the changes in the rate of FRCCP and to the changes in the values of the kinetic parameters activation energy(Ea)and pre-exponential factor(lnA).It was found the existence of relationship between the values of the kinetic parameters calculated for MWH and CH for PAMA and PAMAL hydrogel synthesis process,which is well-known as compensation effect.The effect of MWH on the kinetics of FRCCP for PAMA and PAMAL hydrogel formation were explained by applying the model of activation by selective energy transfer(SET).The changes in kinetics model,rate of FRCCP and kinetics parameters,caused with the MWH can found wide application in designing novel technologies for obtaining polymers and for synthesis of polymers with novel physico-chemical properties.The suggested mechanism of activation for polymerisation under the conditions of MWH also enables development of novel reaction systems and technologies for polymers productions.
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篇名 The Effect of Methacrylic Acid and Maleic Acid on the Isothermal Kinetics of Acrylic Acid Crosslinking Co-polymerization under Conventional and Microwave heating
来源期刊 非金属材料科学(英文) 学科 化学
关键词 acrylic acid(AA) methacrylic acid(MA) maleic acid(MAL) ISOTHERMAL CROSSLINKING co-polymerizations conventionally heating(CH) microwave heating(MWH)
年,卷(期) 2019,(2) 所属期刊栏目
研究方向 页码范围 2-9
页数 8页 分类号 O64
字数 语种
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节点文献
acrylic
acid(AA)
methacrylic
acid(MA)
maleic
acid(MAL)
ISOTHERMAL
CROSSLINKING
co-polymerizations
conventionally
heating(CH)
microwave
heating(MWH)
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
非金属材料科学(英文)
半年刊
2661-3301
12 Eu Tong Sen Stree
出版文献量(篇)
22
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0
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0
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