Phase behavior in thin films of weakly segregated block copolymer/homopolymer blends

Soft Matter ◽  
2021 ◽  
Author(s):  
Jia-Wen Hong ◽  
Jung-Hong Chang ◽  
Iris Ching-Ya Chang ◽  
Ya-Sen Sun
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Phase Behavior ◽  
Thermal Annealing ◽  
Thick Films ◽  
Homopolymer Blends

For P(S-b-MMA)/PS mixtures with ϕPS = 64%, PL exists in thin films annealed at 230–270 °C. For thick films, thermal annealing at 245–270 °C produces both PL and DG of various fractions. PL becomes the only discernible phase in thick films annealed at 230 °C.

scholarly journals Temperature-Controlled Solvent Vapor Annealing of Thin Block Copolymer Films

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1312 ◽  
Author(s):  
Xiao Cheng ◽  
Alexander Böker ◽  
Larisa Tsarkova
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Thermal Annealing ◽  
Saturated Vapor ◽  
Polymer Chains ◽  
Special Focus ◽  
Solvent Vapor ◽  
Copolymer Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Solvent vapor annealing is as an effective and versatile alternative to thermal annealing to equilibrate and control the assembly of polymer chains in thin films. Here, we present scientific and practical aspects of the solvent vapor annealing method, including the discussion of such factors as non-equilibrium conformational states and chain dynamics in thin films in the presence of solvent. Homopolymer and block copolymer films have been used in model studies to evaluate the robustness and the reproducibility of the solvent vapor processing, as well as to assess polymer-solvent interactions under confinement. Advantages of utilizing a well-controlled solvent vapor environment, including practically interesting regimes of weakly saturated vapor leading to poorly swollen states, are discussed. Special focus is given to dual temperature control over the set-up instrumentation and to the potential of solvo-thermal annealing. The evaluated insights into annealing dynamics derived from the studies on block copolymer films can be applied to improve the processing of thin films of crystalline and conjugated polymers as well as polymer composite in confined geometries.

Neutral wetting brush layers for block copolymer thin films using homopolymer blends processed at high temperatures

2015 ◽  
Vol 26 (41) ◽  
pp. 415603 ◽  
Author(s):  
M Ceresoli ◽  
M Palermo ◽  
F Ferrarese Lupi ◽  
G Seguini ◽  
M Perego ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
High Temperatures ◽  
Homopolymer Blends

Thin Films of Block Copolymer−Homopolymer Blends with a Continuously Tunable Density of Spherical Microdomains

2010 ◽  
Vol 43 (17) ◽  
pp. 6946-6949 ◽  
Author(s):  
John M. Papalia ◽  
Andrew P. Marencic ◽  
Douglas H. Adamson ◽  
Paul M. Chaikin ◽  
Richard A. Register
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Homopolymer Blends

Highly Aligned Block Copolymer Thin Films by Synergistic Coupling of Static Graphoepitaxy and Dynamic Thermal Annealing Fields

2013 ◽  
Vol 2 (4) ◽  
pp. 346-350 ◽  
Author(s):  
Brian C. Berry ◽  
Gurpreet Singh ◽  
Ho-Cheol Kim ◽  
Alamgir Karim
Keyword(s):  
Thin Films ◽  
Block Copolymer ◽  
Thermal Annealing

scholarly journals Thermodynamics and Phase Behavior of Block Copolymer/Homopolymer Blends with Attractive and Repulsive Interactions

2002 ◽  
Vol 35 (20) ◽  
pp. 7748-7757 ◽  
Author(s):  
J. H. Lee ◽  
N. P. Balsara ◽  
A. K. Chakraborty ◽  
R. Krishnamoorti ◽  
B. Hammouda
Keyword(s):  
Block Copolymer ◽  
Phase Behavior ◽  
Homopolymer Blends ◽  
Repulsive Interactions

Correlation between crystallization kinetics and melt phase behavior of crystalline–amorphous block copolymer/homopolymer blends

Polymer ◽  
2005 ◽  
Vol 46 (25) ◽  
pp. 11837-11843 ◽  
Author(s):  
Jen-Yung Hsu ◽  
Bhanu Nandan ◽  
Mei-Chun Chen ◽  
Fang-Choyu Chiu ◽  
Hsin-Lung Chen
Keyword(s):  
Block Copolymer ◽  
Phase Behavior ◽  
Crystallization Kinetics ◽  
Amorphous Block ◽  
Homopolymer Blends ◽  
Melt Phase
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