Deep insights into the hydrolysis of N,N-dialkylaminoethyl methacrylates in aqueous solution with H-1 NMR spectroscopy
Zheng, Pengfei1; Su, Xin1; Fei, Chenhong2; Shi, Xiaohuo3; Yin, Hongyao1; Feng, Yujun1,2
2018-06-15
发表期刊JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
ISSN0887-6266
卷号56期号:12页码:914-923
摘要N,N-dialkylaminoethyl methacrylate (DAEA) monomers are extensively used to prepare multi-responsive polymers. However, these monomers face high risk of hydrolysis in their ester groups when being polymerized in water-containing medias. Here, NMR spectroscopy was employed to continuously track the hydrolysis and solubility of four widely used DAEA monomers [CH2CH2R1COO(CH2)(2)N(R-2)(2); R-1=H or CH3; R-2=CH3, CH2CH3 or CH(CH3)(2)] under typical polymerization conditions. With this technique, the hydrolysis reactivity and absolute hydrolysis amount of these monomers are separately examined, and then their kinetic correlations with solubility, molecular structure, pH, and temperature are established, so that the hydrolysis of DAEA monomers and even other esters with similar cyclic structure can be predicted. The present efforts are expected to provide a general understanding for the hydrolysis of all the DAEA monomers, benefitting to the optimization of polymerization toward well-defined DAEA copolymers, as well as the design of smart soft matter for specific applications. (C) 2018 Wiley Periodicals, Inc.
关键词Daea Hydrolysis Ph Precise Synthesis Stimuli-responsive Polymers Temperature
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/61237
专题植物化学与西部植物资源持续利用国家重点实验室
作者单位1.Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China
2.Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Sichuan, Peoples R China
3.Chinese Acad Sci, Kunming Inst Bot, Kunming 650201, Yunnan, Peoples R China
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GB/T 7714
Zheng, Pengfei,Su, Xin,Fei, Chenhong,et al. Deep insights into the hydrolysis of N,N-dialkylaminoethyl methacrylates in aqueous solution with H-1 NMR spectroscopy[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2018,56(12):914-923.
APA Zheng, Pengfei,Su, Xin,Fei, Chenhong,Shi, Xiaohuo,Yin, Hongyao,&Feng, Yujun.(2018).Deep insights into the hydrolysis of N,N-dialkylaminoethyl methacrylates in aqueous solution with H-1 NMR spectroscopy.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,56(12),914-923.
MLA Zheng, Pengfei,et al."Deep insights into the hydrolysis of N,N-dialkylaminoethyl methacrylates in aqueous solution with H-1 NMR spectroscopy".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 56.12(2018):914-923.
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