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Open AccessCommunication

A New Determination Method of the Solubility Parameter of Polymer Based on AIE

1
School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
2
Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
*
Author to whom correspondence should be addressed.
Academic Editor: Youhong Tang
Molecules 2017, 22(1), 54; https://doi.org/10.3390/molecules22010054
Received: 29 November 2016 / Revised: 16 December 2016 / Accepted: 21 December 2016 / Published: 30 December 2016
An accurate method of the fluorescence probe approach based on an aggregation-induced emission (AIE) molecule (tetraphenylethylene) for measuring the solubility parameter of the polymer is reported. This method is distinctive in that the approach can make the polymer chain conformation in solution be related to the fluorescence intensity. Since the solubility parameter of the polymer is also closely linked to its chain conformation in solution, the solubility parameter can be determined by the fluorescence intensity. The range of the solubility parameter of polymethyl methacrylate (PMMA) tested by this method was from 9.00 cal1/2cm−3/2 to 10.00 cal1/2cm−3/2. The results are more accurate than those obtained from the traditional turbidimetric titration method, ranging from 8.60 cal1/2cm−3/2 to 12.15 cal1/2cm−3/2. According to the photoluminescence (PL) intensities spectra, the solubility parameters of PMMA and polyvinyl acetate (PVAc) are 9.19 cal1/2cm−3/2 and 9.85 cal1/2cm−3/2, respectively. View Full-Text
Keywords: aggregation-induced emission; conformation transition; luminescence; solubility parameter aggregation-induced emission; conformation transition; luminescence; solubility parameter
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MDPI and ACS Style

Jiang, S.; Huang, T.Y.; Wang, K.M.; Tang, B.Z.; Yu, Q. A New Determination Method of the Solubility Parameter of Polymer Based on AIE. Molecules 2017, 22, 54.

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