Continuous polydispersity in a self-consistent field theory for diblock copolymers

The Journal of Chemical Physics
Scott W Sides, Glenn H Fredrickson

Abstract

An efficient algorithm is presented for numerically evaluating a self-consistent field theoretic (SCFT) model of an AB diblock copolymer that incorporates continuous polydispersity in one of the blocks. An interesting segregation effect is found in which chains of intermediate molecular weight are concentrated at domain interfaces. This model of continuous polydispersity is also implemented in the random phase approximation (RPA) to study the order-disorder transition and predicts that the stability of the disordered, homogeneous phase decreases as the polydispersity in one of the blocks increases. The RPA predictions are confirmed by SCFT calculations. Our approach and results are particularly relevant to block copolymers prepared by quasiliving synthesis techniques, where the polymerization of one block is much more controlled than the other block.

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Citations

Dec 14, 2006·The European Physical Journal. E, Soft Matter·M W Matsen
Mar 1, 2012·The European Physical Journal. E, Soft Matter·M W Matsen
Apr 25, 2013·The European Physical Journal. E, Soft Matter·M W Matsen
Feb 13, 2008·The Journal of Chemical Physics·Bing Miao, Robert A Wickham
Mar 1, 2013·The Journal of Chemical Physics·Run JiangAn-Chang Shi
Nov 10, 2009·The Journal of Chemical Physics·M A Aliev, S I Kuchanov
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Dec 11, 2013·The Journal of Chemical Physics·Xu ZhangJiaping Lin
Dec 2, 2011·The Journal of Chemical Physics·Daria V GusevaAnatoly V Berezkin
Dec 11, 2013·The Journal of Chemical Physics·Gunja Pandav, Venkat Ganesan
Jun 25, 2009·The Journal of Chemical Physics·Adam J MeulerFrank S Bates
Jan 30, 2016·Journal of the American Chemical Society·Dillon T GentekosBrett P Fors
Sep 4, 2015·The Journal of Chemical Physics·M A Aliev, N Yu Kuzminyh
Dec 3, 2016·Physical Review Letters·Thomas M Beardsley, Mark W Matsen
Apr 27, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Haiqiang WangClifford E Woodward
Oct 24, 2019·The Journal of Chemical Physics·Hejin Huang, Alfredo Alexander-Katz
Oct 13, 2007·Physical Review Letters·M W Matsen
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Nov 17, 2006·The Journal of Physical Chemistry. B·Dazhi KouHaojun Liang
Oct 15, 2021·ACS Nano·Runze LiuCaroline A Ross

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