Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/12506
Title: | Modeling Hydrogen-Bonding in Diblock Copolymer/Homopolymer Blends |
Authors: | Dehghan, Kooshkghazi Ashkan |
Advisor: | Shi, An-Chang |
Department: | Physics and Astronomy |
Keywords: | SCFT;Diblock Copolymer;Homopolymer;Hydrogen Bonding;Self-Consistent Field Theory;Phase transitions;Biological and Chemical Physics;Condensed Matter Physics;Statistical Models;Biological and Chemical Physics |
Publication Date: | Oct-2012 |
Abstract: | <p>The phase behavior of AB diblock copolymers mixed with C homopolymers (AB/C), in which A and C are capable of forming hydrogen-bonds, is examined using self-consistent field theory. The study focuses on the modeling of hydrogen-bonding in polymers. Specifically, we examine two models for the formation of hydrogen-bonds between polymer chains. The first commonly used model assumes a large attractive interaction parameter between the A/C monomers. This model reproduces correct phase transition sequences as compared with experiments, but it fails to correctly describe the change of lamellar spacing induced by the addition of the C homopolymers. The second model is based on the fact that hydrogen-bonding leads to A/C complexation. We show that the interpolymer complexation model predicts correctly the order-order phase transition sequences and the decrease of lamellar spacing for strong hydrogen-bonding. Our analysis demonstrates that hydrogen-bonding of polymers should be modeled by interpolymer complexation.</p> |
URI: | http://hdl.handle.net/11375/12506 |
Identifier: | opendissertations/7388 8444 3335645 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Size | Format | |
---|---|---|---|
fulltext.pdf | 757.13 kB | Adobe PDF | View/Open |
Items in MacSphere are protected by copyright, with all rights reserved, unless otherwise indicated.