ICCAS OpenIR
Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels
Li, Cancan1; Xu, Ling1,2; Zhai, Maolin1; Peng, Jing1; Li, Jiuqiang1
2011-05-15
Source PublicationJOURNAL OF APPLIED POLYMER SCIENCE
ISSN0021-8995
Volume120Issue:4Pages:2027-2033
AbstractAn overshooting effect was observed during the swelling procedure of poly(dimethylaminoethyl methacrylate) (PDMAEMA) gel for the first time. The effects of the temperature, ionic strength, and pH on the overshooting effect of the PDMAEMA gel were investigated. We found that the overshooting effect of the gel could not be eliminated by changing the temperature; however, the overshooting effect was indiscernible in high-concentration NaCl solutions (> 0.2 mol/L) and basic (pH 11.9) and acidic solutions (pH = 2.1). The overshooting effect of the PDMAEMA gel was attributed to the dynamic conformational changes of the side chains of dimethylaminoethyl methacrylate (DMAEMA) units during the swelling of the gels. In the presence of NaCl or NaOH, the stretching of the macromolecular chains of the gels was disrupted. While in acidic solution, the protonation of tertiary amino groups in the DMAEMA units made the side chains of the DMAEMA units change from the cyclic conformation to the stretched one; this was analyzed with the aid of Fourier transform infrared spectroscopy. (c) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 2027-2033, 2011
KeywordHydrogels Kinetics (Polym.) Swelling
DOI10.1002/app.33328
Indexed BySCI
Language英语
WOS IDWOS:000288337400019
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71720
Collection中国科学院化学研究所
Corresponding AuthorZhai, Maolin
Affiliation1.Peking Univ, Beijing Natl Lab Mol Sci, Dept Appl Chem, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Li, Cancan,Xu, Ling,Zhai, Maolin,et al. Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2011,120(4):2027-2033.
APA Li, Cancan,Xu, Ling,Zhai, Maolin,Peng, Jing,&Li, Jiuqiang.(2011).Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels.JOURNAL OF APPLIED POLYMER SCIENCE,120(4),2027-2033.
MLA Li, Cancan,et al."Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels".JOURNAL OF APPLIED POLYMER SCIENCE 120.4(2011):2027-2033.
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