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Nanomaterials 2017, 7(7), 169; doi:10.3390/nano7070169

Synthesis and Self-Assembled Behavior of pH-Responsive Chiral Liquid Crystal Amphiphilic Copolymers Based on Diosgenyl-Functionalized Aliphatic Polycarbonate

Center for Molecular Science and Engineering, College of Science, Northeastern University, Shenyang 110819, China
Key Laboratory of Reproductive Health and Medical Genetics, National Health and Family Planning Commission, Shenyang 110031, China
Author to whom correspondence should be addressed.
Received: 22 May 2017 / Revised: 23 June 2017 / Accepted: 30 June 2017 / Published: 4 July 2017
(This article belongs to the Special Issue Frontiers in Chiral Nanomaterials)
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The morphological control of polymer micellar aggregates is an important issue in applications such as nanomedicine and material science. Stimuli responsive soft materials have attracted significant attention for their well-controlled morphologies. However, despite extensive studies, it is still a challenge to prepare nanoscale assemblies with responsive behaviors. Herein, a new chiral liquid crystal (LC) aliphatic polycarbonate with side chain bearing diosgenyl mesogen, named mPEG43-PMCC25-P(MCC-DHO)15, was synthesized through the ring-opening polymerization and coupling reaction. The self-assembled behavior of the LC copolymer was explored. In aqueous solution, the functionalized copolymer could self-organize into different nanostructures with changing pH value, such as nanospheres and nanofibers. This would offer new possibilities in the design of nanostructured organic materials. View Full-Text
Keywords: diosgenin; liquid crystal; self-assembly; nanospheres; nanofibers diosgenin; liquid crystal; self-assembly; nanospheres; nanofibers

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Guo, Z.-H.; Liu, X.-F.; Hu, J.-S.; Yang, L.-Q.; Chen, Z.-P. Synthesis and Self-Assembled Behavior of pH-Responsive Chiral Liquid Crystal Amphiphilic Copolymers Based on Diosgenyl-Functionalized Aliphatic Polycarbonate. Nanomaterials 2017, 7, 169.

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