Combined Mesoscale/Experimental Study of Selective Placement of Magnetic Nanoparticles in Diblock Copolymer Films via Solvent Vapor Annealing

2016 ◽  
Vol 120 (13) ◽  
pp. 7403-7411 ◽  
Author(s):  
P. Posocco ◽  
Y. Mohamed Hassan ◽  
I. Barandiaran ◽  
G. Kortaberria ◽  
S. Pricl ◽  
...  
Keyword(s):  
Experimental Study ◽  
Magnetic Nanoparticles ◽  
Diblock Copolymer ◽  
Solvent Vapor ◽  
Copolymer Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Selective Placement

scholarly journals Segregation of Maghemite Nanoparticles within Symmetric Diblock Copolymer and Triblock Terpolymer Patterns under Solvent Vapor Annealing

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1286
Author(s):  
George Zapsas ◽  
Dimitrios Moschovas ◽  
Konstantinos Ntetsikas ◽  
Andreas Karydis-Messinis ◽  
Nikolaos Chalmpes ◽  
...  
Keyword(s):  
Thin Films ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Maghemite Nanoparticles ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
The Matrix ◽  
Solvent Vapor Annealing ◽  
Selective Placement

Block copolymers (BCPs), through their self-assembly, provide an excellent guiding platform for precise controlled localization of maghemite nanoparticles (MNPs). Diblock copolymers (di/BCP) represent the most applied matrix to host filler components due to their morphological simplicity. A series of nanocomposites based on diblock copolymer or triblock terpolymer matrices and magnetic nanoparticles were prepared to study and compare the influence of an additional block into the BCP matrix. MNPs were grafted with low molecular weight polystyrene (PS) chains in order to be segregated in a specific phase of the matrix to induce selective localization. After the mixing of the BCPs with 10% w/v PS-g-MNPs, nanocomposite thin films were formed by spin coating. Solvent vapor annealing (SVA) enabled the PS-g-MNPs selective placement within the PS domains of the BCPs, as revealed by atomic force microscopy (AFM). The recorded images have proven that high amounts of functionalized MNPs can be controllably localized within the same block (PS), despite the architecture of the BCPs (AB vs. ABC). The adopted lamellar structure of the “neat” BCP thin films was maintained for MNPs loading approximately up to 10% w/v, while, for higher content, the BCP adopted lamellar morphology is partially disrupted, or even disappears for both AB and ABC architectures.

Vertical Domain Orientation in Cylinder-Forming Diblock Copolymer Films upon Solvent Vapor Annealing

2015 ◽  
Vol 49 (1) ◽  
pp. 415-424 ◽  
Author(s):  
Anatoly V. Berezkin ◽  
Christine M. Papadakis ◽  
Igor I. Potemkin
Keyword(s):  
Diblock Copolymer ◽  
Solvent Vapor ◽  
Domain Orientation ◽  
Copolymer Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

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.

scholarly journals Synergic Swelling of Interactive Network Support and Block Copolymer Films during Solvent Vapor Annealing

Langmuir ◽  
2018 ◽  
Vol 34 (34) ◽  
pp. 9950-9960 ◽  
Author(s):  
Wojciech Ogieglo ◽  
Anja Stenbock-Fermor ◽  
Thomas M. Juraschek ◽  
Yulia Bogdanova ◽  
Nieck Benes ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Solvent Vapor ◽  
Network Support ◽  
Copolymer Films ◽  
Interactive Network ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

scholarly journals Solvent Vapor Annealing of a Diblock Copolymer Thin Film with a Nonselective and a Selective Solvent: Importance of Pathway for the Morphological Changes

2020 ◽  
Vol 41 (14) ◽  
pp. 2000150 ◽  
Author(s):  
Florian A. Jung ◽  
Anatoly V. Berezkin ◽  
Tim B. Tejsner ◽  
Dorthe Posselt ◽  
Detlef‐M. Smilgies ◽  
...  
Keyword(s):  
Thin Film ◽  
Diblock Copolymer ◽  
Morphological Changes ◽  
Selective Solvent ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

scholarly journals Lamellar Diblock Copolymer Thin Films during Solvent Vapor Annealing Studied by GISAXS: Different Behavior of Parallel and Perpendicular Lamellae

2014 ◽  
Vol 47 (16) ◽  
pp. 5711-5718 ◽  
Author(s):  
Jianqi Zhang ◽  
Dorthe Posselt ◽  
Detlef-M. Smilgies ◽  
Jan Perlich ◽  
Konstantinos Kyriakos ◽  
...  
Keyword(s):  
Thin Films ◽  
Diblock Copolymer ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing

Unidirectional Alignment of Block Copolymer Films Induced by Expansion of a Permeable Elastomer during Solvent Vapor Annealing

2014 ◽  
Vol 47 (3) ◽  
pp. 1109-1116 ◽  
Author(s):  
Zhe Qiang ◽  
Longhe Zhang ◽  
Gila E. Stein ◽  
Kevin A. Cavicchi ◽  
Bryan D. Vogt
Keyword(s):  
Block Copolymer ◽  
Solvent Vapor ◽  
Copolymer Films ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing
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