[Langmuir] Nonionic Cyclodextrin Based Binary System with Upper and Lower Critical Solution Temperature Transitions via Supramolecular Inclusion Interaction
writer：Zhen Yang, Xiaodong Fan,* Wei Tian,* Dan Wang, Haitao Zhang, and Yang Bai
keywords：Nonionic，Cyclodextrin，Supramolecular，Upper and Lower Critical Solution Temperature Transitions
source：期刊
specific source：Langmuir 2014, 30, 7319-7326
Issue time：2014年
A nonionic binary aqueous interaction system consisting of β-cyclodextrin trimer (β-CD3) and naphthaleneterminated poly(ethylene glycol) (PEG-NP2), which has tunable upper critical solution temperature (UCST) behavior around room temperature and lower critical solution temperature (LCST) behavior at high temperature, was investigated. In the UCST transition, gel-like aggregates form because of supramolecular inclusion complexation between β-CD3 and PEG-NP2. During LCST transition, PEG-NP2 becomes insoluble in water, which results in its precipitation. The effects of concentration, stoichiometry of the two components, and electrolyte on UCST behavior are discussed. This study provides a new nonionic thermoresponsive material.
全文鏈接：http://pubs.acs.org/doi/abs/10.1021/la501278n?journalCode=langd5&quickLinkVolume=30&quickLinkPage=7319&selectedTab=citation&volume=30