Self-Assembly of Diblock Copolymers Containing Thermo- and Photoresponsive Lower Critical Solution Temperature Phase Behavior Polymer with Tunable Assembly Temperature in an Ionic Liquid Mixture

Lan, Xiaoyu (author): College of Science, Nanjing Forestry University, Nanjing, P. R. China

Ma, Xiaofeng (author): College of Science, Nanjing Forestry University, Nanjing, P. R. China

Wang, Lei (author): College of Science, Nanjing Forestry University, Nanjing, P. R. China

Gu, Qun (author): Department of Chemistry, Edinboro University of Pennsylvania, Edinboro, United States

Wu, Linlin (author): College of Materials Science and Engineering, Nanjing Tech University, Nanjing, P. R. China

Gu, Xiaoli (author): College of Chemical Engineering, Nanjing Forestry University, Nanjing, P. R. China

Luo, Zhenyang (author): College of Science, Nanjing Forestry University, Nanjing , P. R. China

College of Science, Nanjing Forestry University, Nanjing, P R. China Maskinelement (creator_code:org_t)

2019-06-27
2019
English.
In: ACS Omega. - : American Chemical Society (ACS). - 2470-1343. ; 4:6, s. 11229-11236

Related links:: https://pubs.acs.org...; show more...; https://urn.kb.se/re...; https://doi.org/10.1...; show less...

Abstract Subject headings

This work prepared a type of diblock copolymer with thermo- and photosensitivity in ionic liquids (ILs). P(N,N-dimethylacrylamide) (compatible with ILs) was prepared as one segment, while butyl acrylate (BA) and 4-phenylazophenylmethacrylate (AzoMA) were copolymerized as another segment P(AzoMA-r-BA) with stimuli responsiveness. The diblock copolymer showed tunable lower critical micellization temperature (LCMT) in two mixed imidazole ionic liquids. The value of LCMT depends on not only the conformation status of the azo group in copolymers but also the azo group content in copolymers and mixed ratio of ionic liquids. Based on this tunable LCMT, photoinduced micellization/demicellization can be achieved near room temperature by alternate irradiation with visible and ultraviolet light, and it is totally reversible.

By the author/editor: Lan, Xiaoyu; Ma, Xiaofeng; Wang, Lei; Shi, Yijun; Gu, Qun; Wu, Linlin; show more...; Gu, Xiaoli; Luo, Zhenyang; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Tribology

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