Systematic Study on the Effect of Solvent Removal Rate on the Morphology of Solvent Vapor Annealed ABA Triblock Copolymer Thin Films

ACS Nano ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 459-466 ◽  
Author(s):  
Julie N. L. Albert ◽  
Wen-Shiue Young ◽  
Ronald L. Lewis ◽  
Timothy D. Bogart ◽  
Jasmine R. Smith ◽  
...  
2011 ◽  
Vol 519 (19) ◽  
pp. 6629-6636 ◽  
Author(s):  
Yuan Zhou ◽  
Xia Han ◽  
Jun Hu ◽  
Yongmin Huang ◽  
Honglai Liu

Author(s):  
Ginam Kim ◽  
W. Marsillo ◽  
M. Libera

The fact that block copolymers can assume a range of morphologies depending upon such variables as relative block length and molecular weight is now well known. In the case of poly(styrene)[PS]-poly(butadiene)[PB]-poly(styrene) (SBS) triblock copolymer, the morphologies range from spheres (roughly ~20% minor component), to cylinders (roughly 20%~35% minor component), to lamellae (roughly equal component fractions) Most recently, there has been increasing interest in transformations between morphologies by thermal annealing. This paper describes initial results studying the effect of solvent evaporation rate and post-casting annealing treatment on the morphology of SBS thin films.TEM specimens were prepared by solution casting electron transparent films. 50 μl of 0.1 wt% SBS (30% styrene, Mw=14,000, Scientific Polymer Products, Inc.) dissolved in toluene was deposited on a polished NaCl single crystal substrate placed in a small dish. After solvent evaporation the film was cut into small squares, floated from the salt in water, and each square was collected on a Cu grid.


2019 ◽  
Vol 4 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Ryan T. Shafranek ◽  
Joel D. Leger ◽  
Song Zhang ◽  
Munira Khalil ◽  
Xiaodan Gu ◽  
...  

Directed self-assembly in polymeric hydrogels allows tunability of thermal response and viscoelastic properties.


Polymer ◽  
2003 ◽  
Vol 44 (18) ◽  
pp. 5303-5310 ◽  
Author(s):  
Katsuhiro Inomata ◽  
Daisuke Nakanishi ◽  
Ai Banno ◽  
Eiji Nakanishi ◽  
Yosuke Abe ◽  
...  

Nano Energy ◽  
2020 ◽  
Vol 67 ◽  
pp. 104207 ◽  
Author(s):  
Wan Sik Kim ◽  
Gopinathan Anoop ◽  
Il-Seok Jeong ◽  
Hye Jeong Lee ◽  
Hyun Bin Kim ◽  
...  

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