Effect of Block Length on Solvent Response of Block Copolymer Brushes:  Combinatorial Study with Block Copolymer Brush Gradients

2006 ◽  
Vol 39 (9) ◽  
pp. 3359-3364 ◽  
Author(s):  
Chang Xu ◽  
Tao Wu ◽  
Charles Michael Drain ◽  
James D. Batteas ◽  
Michael J. Fasolka ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Length ◽  
Copolymer Brushes ◽  
Copolymer Brush

scholarly journals Synthesis of Block Copolymer Brush by RAFT and Click Chemistry and Its Self-Assembly as a Thin Film

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4774
Author(s):  
Hajeeth Thankappan ◽  
Mona Semsarilar ◽  
Suming Li ◽  
Yung Chang ◽  
Denis Bouyer ◽  
...  
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Block Copolymer ◽  
Click Chemistry ◽  
Self Assembly ◽  
Water System ◽  
Size Exclusion ◽  
Spherical Micelle ◽  
Copolymer Brushes ◽  
Copolymer Brush

A well-defined block copolymer brush poly(glycidyl methacrylate)-graft-(poly(methyl methacrylate)-block- poly(oligo(ethylene glycol) methyl ether methacrylate)) (PGMA-g-(PMMA-b-POEGMA)) is synthesized via grafting from an approach based on a combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization. The resulting block copolymer brushes were characterized by 1H-NMR and size exclusion chromatography (SEC). The self-assembly of the block copolymer brush was then investigated under selective solvent conditions in three systems: THF/water, THF/CH3OH, and DMSO/CHCl3. PGMA-g-(PMMA-b-POEGMA) was found to self-assemble into spherical micelle structures as analyzed by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The average size of the particles was much smaller in THF/CH3OH and DMSO/CHCl3 as compared with the THF/water system. Thin film of block copolymer brushes with tunable surface properties was then prepared by the spin-coating technique. The thickness of the thin film was confirmed by scanning electron microscopy (SEM). Atom force microscopy (AFM) analysis revealed a spherical morphology when the block copolymer brush was treated with poor solvents for the backbone and hydrophobic side chains. The contact angle measurements were used to confirm the surface rearrangements of the block copolymer brushes.

scholarly journals Thermoresponsive Cationic Block Copolymer Brushes for Temperature‐Modulated Stem Cell Separation

2020 ◽  
Vol 41 (19) ◽  
pp. 2000308 ◽  
Author(s):  
Kenichi Nagase ◽  
Ayumu Ota ◽  
Tadashi Hirotani ◽  
Sota Yamada ◽  
Aya Mizutani Akimoto ◽  
...  
Keyword(s):  
Stem Cell ◽  
Block Copolymer ◽  
Cell Separation ◽  
Copolymer Brushes

Crossover of a block copolymer brush in a polymer melt from a stretched to collapsed conformation

1997 ◽  
Vol 56 (3) ◽  
pp. R2383-R2386 ◽  
Author(s):  
Robert Oslanec ◽  
Petr Vlcek ◽  
William A. Hamilton ◽  
Russell J. Composto
Keyword(s):  
Block Copolymer ◽  
Polymer Melt ◽  
Copolymer Brush

Fluorocarbon-Free Dual-Action Textile Finishes Based on Covalently Attached Thermoresponsive Block Copolymer Brush Coatings

2018 ◽  
Vol 10 (46) ◽  
pp. 40088-40099 ◽  
Author(s):  
Martin Messerschmidt ◽  
Andreas Janke ◽  
Frank Simon ◽  
Christian Hanzelmann ◽  
Tino Riske ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Dual Action ◽  
Copolymer Brush

Neutrality Conditions for Block Copolymer Systems on Random Copolymer Brush Surfaces

1999 ◽  
Vol 32 (16) ◽  
pp. 5299-5303 ◽  
Author(s):  
E. Huang ◽  
S. Pruzinsky ◽  
T. P. Russell ◽  
J. Mays ◽  
C. J. Hawker
Keyword(s):  
Block Copolymer ◽  
Random Copolymer ◽  
Copolymer Brush

scholarly journals Synthesis of acrylamide-based block-copolymer brushes under flow: monitoring real-time growth and surface restructuring upon drying

2020 ◽  
Vol 11 (18) ◽  
pp. 3209-3216 ◽  
Author(s):  
Joydeb Mandal ◽  
Andrea Arcifa ◽  
Nicholas D. Spencer
Keyword(s):  
Block Copolymer ◽  
Real Time ◽  
Quartz Crystal Microbalance ◽  
Continuous Flow ◽  
Quartz Crystal ◽  
Water Soluble ◽  
Surface Restructuring ◽  
Flow Monitoring ◽  
Copolymer Brushes

Block-copolymer brushes of water-soluble acrylamides have been synthesised by SI-ATRP under continuous flow and their growth monitored in situ by means of a quartz-crystal microbalance with dissipation (QCM-D).

Fabrication of block copolymer brushes on hollow sphere surface via reverse iodine transfer polymerization

2011 ◽  
Vol 361 (1) ◽  
pp. 400-406 ◽  
Author(s):  
Li-Ping Wang ◽  
Li-Hua Dong ◽  
Jing-Cheng Hao ◽  
Xin-Hu Lv ◽  
Wen-Zhi Li ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Hollow Sphere ◽  
Sphere Surface ◽  
Iodine Transfer ◽  
Copolymer Brushes

scholarly journals Hierarchically Ordered Montmorillonite Block Copolymer Brushes

2010 ◽  
Vol 43 (5) ◽  
pp. 2111-2114 ◽  
Author(s):  
Ross E. Behling ◽  
Lynn M. Wolf ◽  
Eric W. Cochran
Keyword(s):  
Block Copolymer ◽  
Copolymer Brushes

Homopolymer and block copolymer brushes on gold by living anionic surface-initiated polymerization in a polar solvent

2005 ◽  
Vol 44 (2) ◽  
pp. 769-782 ◽  
Author(s):  
Georgios Sakellariou ◽  
Mikyoung Park ◽  
Rigoberto Advincula ◽  
Jimmy W. Mays ◽  
Nikos Hadjichristidis
Keyword(s):  
Block Copolymer ◽  
Polar Solvent ◽  
Surface Initiated Polymerization ◽  
Copolymer Brushes ◽  
Anionic Surface
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