期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 16, 期 14, 页码 1897-1900出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.202100502
关键词
zwitterionic polymers; Hofmeister anion series; sulfobetaines; phase transition; anti-polyelectrolyte
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2019R1C1C1002836]
- National Research Foundation of Korea (NRF) - MSIT [2020R1A4A3079853]
- National Research Foundation of Korea [2019R1C1C1002836, 2020R1A4A3079853] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study compared the responses of two different types of zwitterionic polymers to Hofmeister anions and found significant differences in their aggregation behavior in salt solutions. The results showed that poly(SBVI) exhibited salting-in and salting-out effects depending on the type and concentration of salt, while poly(SBMA) only showed the anti-polyelectrolyte effect.
In this study, we compared the responses of two different types of zwitterionic polymers (ZPs), polyvinylimidzole sulfobetaine (poly(SBVI)) and polymethacrylate sulfobetaine (poly(SBMA)) to Hofmeister anions. Although the anions of the two ZPs were the same as the sulfonate anions and only the types of their cations were different from each other, the aggregation behavior of each in the salt aqueous solution was remarkably different. Consequently, poly(SBVI) exhibited both salting-in and salting-out effects depending on the type and concentration of salt, while poly(SBMA) only exhibited the anti-polyelectrolyte effect. The results of this study provide a deeper understanding of the behavior of zwitterionic polymers in salt solutions and will greatly expand their applications.
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