Alignment of Self-Assembled Structures in Block Copolymer Films by Solvent Vapor Permeation

2010 ◽  
Vol 43 (7) ◽  
pp. 3132-3135 ◽  
Author(s):  
Chinedum O. Osuji
Keyword(s):  
Block Copolymer ◽  
Solvent Vapor ◽  
Copolymer Films ◽  
Vapor Permeation ◽  
Self Assembled

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.

A generalized method for alignment of block copolymer films: solvent vapor annealing with soft shear

Soft Matter ◽  
2014 ◽  
Vol 10 (32) ◽  
pp. 6068-6076 ◽  
Author(s):  
Zhe Qiang ◽  
Yuanzhong Zhang ◽  
Jesse A. Groff ◽  
Kevin A. Cavicchi ◽  
Bryan D. Vogt
Keyword(s):  
Block Copolymer ◽  
Annealing Time ◽  
Drying Rate ◽  
Processing Conditions ◽  
Solvent Vapor ◽  
Copolymer Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Alignment of block copolymer (BCP) films by solvent vapor annealing with soft shear is strongly dependent on processing conditions with enhanced alignment as the swelling of the BCP (without disordering) and PDMS increases, drying rate decreases and the annealing time increases.

Effect of Nanostructured Domains in Self-Assembled Block Copolymer Films on Sequential Infiltration Synthesis

Langmuir ◽  
2017 ◽  
Vol 33 (46) ◽  
pp. 13214-13223 ◽  
Author(s):  
Qing Peng ◽  
Yu-Chih Tseng ◽  
Yun Long ◽  
Anil U. Mane ◽  
Shane DiDona ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Copolymer Films ◽  
Self Assembled

Quantified Comparison of Ordering in Self-Assembled Block Copolymer Films of Different Molecular Weights by Image Analysis Method

2012 ◽  
Vol 1412 ◽  
Author(s):  
Timothy Kehoe ◽  
Nikolaos Kehagias ◽  
Worawut Khunsin ◽  
Dipu Borah ◽  
Michael Morris ◽  
...  
Keyword(s):  
Image Analysis ◽  
Block Copolymer ◽  
Radial Distance ◽  
Hexagonal Structure ◽  
Analysis Method ◽  
Image Analysis Method ◽  
Force Microscopy ◽  
Molecular Weights ◽  
Copolymer Films ◽  
Self Assembled

ABSTRACTThe order in self-assembled block copolymer films with hexagonal structure is compared using an image analysis method and images taken by scanning electron microscopy and atomic force microscopy. The coordinates of the centres of cylindrical elements in the assembled array are assigned using image analysis software. The method is then used to calculate the amount of elements that symmetrically overlap with another element when mapped through an origin point. Order is compared based on a single numerical value which is dependent on radial distance from the origin and the overlap tolerance value that is assigned. Samples of PS-b-PEO diblock copolymer with a range of molecular weights are compared, and it is found that the degree of ordering achieved is not related to the size of the molecule.

scholarly journals In-Situ Reflectometry Observation on Structural Changes of Thin Self-Assembled Block Copolymer Films

2007 ◽  
Vol 83 ◽  
pp. 012028 ◽  
Author(s):  
N Torikai ◽  
N L Yamada ◽  
D Kawaguchi ◽  
A Takano ◽  
Y Matsushita ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Structural Changes ◽  
Copolymer Films ◽  
Self Assembled

Nanostructure of self-assembled rod-coil block copolymer films for photovoltaic applications

2006 ◽  
Vol 511-512 ◽  
pp. 219-223 ◽  
Author(s):  
T. Heiser ◽  
G. Adamopoulos ◽  
M. Brinkmann ◽  
U. Giovanella ◽  
S. Ould-Saad ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Copolymer Films ◽  
Photovoltaic Applications ◽  
Self Assembled

scholarly journals Templating Three-Dimensional Self-Assembled Structures in Bilayer Block Copolymer Films

Science ◽  
2012 ◽  
Vol 336 (6086) ◽  
pp. 1294-1298 ◽  
Author(s):  
A. Tavakkoli K. G. ◽  
K. W. Gotrik ◽  
A. F. Hannon ◽  
A. Alexander-Katz ◽  
C. A. Ross ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Three Dimensional ◽  
Copolymer Films ◽  
Self Assembled

Well-ordered self-assembled nanostructures of block copolymer films via synergistic integration of chemoepitaxy and zone annealing

2018 ◽  
Vol 20 (1) ◽  
pp. 498-508 ◽  
Author(s):  
Liangshun Zhang ◽  
Lingling Liu ◽  
Jiaping Lin
Keyword(s):  
Block Copolymer ◽  
Copolymer Films ◽  
Self Assembled ◽  
Annealing Method

The integrated chemical template/zone annealing method has the capability to rapidly fabricate well-aligned and well-oriented nanostructures over a macroscopic area.

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