Adjustable temperature sensor with double thermoresponsiveness based on the aggregation property of binary diblock copolymers
作者：Wu, Kai; Shi, Linqi; Zhang, Wangqing; 等.
關鍵字：block copolymers
論文來源：期刊
具體來源：JOURNAL OF APPLIED POLYMER SCIENCE
發(fā)表時間：2006年
onlinelibrary.wiley.com/doi/10.1002/app.24300/abstract
This article presents a new and promising way to design a temperature sensor, which is based on the micellization or aggregation behavior of binary diblock copolymers of poly(ethylene glycol)-b-poly(N-isopropylacrylamide) (PEG-b-PNIPAM) and poly(ethylene glycol)-b-poly(4-vinylpyridine) (PEG-b-P(4-VP)). The temperature sensor presents both a lower critical response temperature (LCRT) and an upper critical response temperature (UCRT), where the thermoreversible aggregating of PEG-b-P(4-VP) and H2SO4 is used to control the LCRT, and the thermoreversible micellization of PEG-b-PNIPAM is used to control the UCRT. Furthermore, the LCRT can be altered by changing the H2SO4 concentration, and the UCRT can be adjusted by altering the PEG-b-PNIPAM concentration. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3144–3148, 2006