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Polymers 2018, 10(1), 73; https://doi.org/10.3390/polym10010073

Theory of the Flower Micelle Formation of Amphiphilic Random and Periodic Copolymers in Solution

Department of Macromolecular Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
Received: 9 December 2017 / Revised: 10 January 2018 / Accepted: 11 January 2018 / Published: 14 January 2018
(This article belongs to the Special Issue Polymer Micelles)
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Abstract

The mixing Gibbs energy Δgm for the flower-micelle phase of amphiphilic random and periodic (including alternating) copolymers was formulated on the basis of the lattice model. The formulated Δgm predicts (1) the inverse proportionality of the aggregation number to the degree of polymerization of the copolymer, (2) the increase of the critical micelle concentration with decreasing the hydrophobe content, and (3) the crossover from the micellization to the liquid–liquid phase separation as the hydrophobe content increases. The transition from the uni-core flower micelle to the multi-core flower necklace as the degree of polymerization increases was also implicitly indicated by the theory. These theoretical results were compared with experimental results for amphiphilic random and alternating copolymers reported so far. View Full-Text
Keywords: amphiphilic polymers; random copolymers; alternating copolymers; flower micelles; flower necklaces; vesicle amphiphilic polymers; random copolymers; alternating copolymers; flower micelles; flower necklaces; vesicle
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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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Sato, T. Theory of the Flower Micelle Formation of Amphiphilic Random and Periodic Copolymers in Solution. Polymers 2018, 10, 73.

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