Self-Concentration and Interfacial Fluctuation Effects on the Local Segmental Dynamics of Nanostructured Diblock Copolymer Melts

2008 ◽  
Vol 41 (3) ◽  
pp. 511-514 ◽  
Author(s):  
Reidar Lund ◽  
Lutz Willner ◽  
Angel Alegría ◽  
Juan Colmenero ◽  
Dieter Richter
Keyword(s):  
Diblock Copolymer ◽  
Segmental Dynamics ◽  
Copolymer Melts ◽  
Fluctuation Effects

scholarly journals Field-Theoretic Simulations for Block Copolymer Melts Using the Partial Saddle-Point Approximation

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2437
Author(s):  
Mark W. Matsen ◽  
Thomas M. Beardsley
Keyword(s):  
Block Copolymer ◽  
Diblock Copolymer ◽  
Graphics Processing Units ◽  
Theoretical Foundation ◽  
Mean Field ◽  
Saddle Point Approximation ◽  
Central Processing ◽  
Copolymer Melts ◽  
Fluctuation Effects ◽  
Graphics Processing

Field-theoretic simulations (FTS) provide an efficient technique for investigating fluctuation effects in block copolymer melts with numerous advantages over traditional particle-based simulations. For systems involving two components (i.e., A and B), the field-based Hamiltonian, Hf[W−,W+], depends on a composition field, W−(r), that controls the segregation of the unlike components and a pressure field, W+(r), that enforces incompressibility. This review introduces researchers to a promising variant of FTS, in which W−(r) fluctuates while W+(r) tracks its mean-field value. The method is described in detail for melts of AB diblock copolymer, covering its theoretical foundation through to its numerical implementation. We then illustrate its application for neat AB diblock copolymer melts, as well as ternary blends of AB diblock copolymer with its A- and B-type parent homopolymers. The review concludes by discussing the future outlook. To help researchers adopt the method, open-source code is provided that can be run on either central processing units (CPUs) or graphics processing units (GPUs).

Surface segregation in model symmetric polyolefin diblock copolymer melts

1994 ◽  
Vol 4 (12) ◽  
pp. 2231-2248 ◽  
Author(s):  
Mohan Sikka ◽  
Navjot Singh ◽  
Frank S. Bates ◽  
Alamgir Karim ◽  
Sushil Satija ◽  
...  
Keyword(s):  
Diblock Copolymer ◽  
Surface Segregation ◽  
Copolymer Melts

Effects of confinement on the order-disorder transition of diblock copolymer melts

2006 ◽  
Vol 124 (14) ◽  
pp. 144902 ◽  
Author(s):  
Bing Miao ◽  
Dadong Yan ◽  
Charles C. Han ◽  
An-Chang Shi
Keyword(s):  
Diblock Copolymer ◽  
Disorder Transition ◽  
Copolymer Melts

Order and Disorder in Symmetric Diblock Copolymer Melts

1995 ◽  
Vol 28 (5) ◽  
pp. 1429-1443 ◽  
Author(s):  
Jeffrey H. Rosedale ◽  
Frank S. Bates ◽  
Kristoffer Almdal ◽  
Kell Mortensen ◽  
George D. Wignall
Keyword(s):  
Diblock Copolymer ◽  
Order And Disorder ◽  
Copolymer Melts

The influence of the morphology on the dynamics in ordered diblock copolymer melts

2000 ◽  
Vol 162 (1) ◽  
pp. 275-290 ◽  
Author(s):  
Christine M. Papadakis ◽  
Kristoffer Almdal ◽  
Kell Mortensen ◽  
Frank Rittig ◽  
Petr Štěpánek
Keyword(s):  
Diblock Copolymer ◽  
Copolymer Melts
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