Synthesis and Morphology of Molecular Brushes with Polyacrylonitrile Block Copolymer Side Chains and Their Conversion into Nanostructured Carbons

2007 ◽  
Vol 40 (17) ◽  
pp. 6199-6205 ◽  
Author(s):  
Chuanbing Tang ◽  
Bruno Dufour ◽  
Tomasz Kowalewski ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Block Copolymer ◽  
Side Chains ◽  
Molecular Brushes ◽  
Nanostructured Carbons

scholarly journals Self-Assembly of Molecular Brushes with Polyimide Backbone and Amphiphilic Block Copolymer Side Chains in Selective Solvents

Polymers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 2922
Author(s):  
Maria Simonova ◽  
Ivan Ivanov ◽  
Tamara Meleshko ◽  
Alexey Kopyshev ◽  
Svetlana Santer ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Self Assembly ◽  
Amphiphilic Block Copolymer ◽  
Side Chains ◽  
Poly Methyl Methacrylate ◽  
Molecular Brushes ◽  
Selective Solvents ◽  
Significant Difference ◽  
Thermodynamic Quality

Three-component molecular brushes with a polyimide backbone and amphiphilic block copolymer side chains with different contents of the “inner” hydrophilic (poly(methacrylic acid)) and “outer” hydrophobic (poly(methyl methacrylate)) blocks were synthesized and characterized by molecular hydrodynamics and optics methods in solutions of chloroform, dimethylformamide, tetrahydrofuran and ethanol. The peculiarity of the studied polymers is the amphiphilic structure of the grafted chains. The molar masses of the molecular brushes were determined by static and dynamic light scattering in chloroform in which polymers form molecularly disperse solutions. Spontaneous self-assembly of macromolecules was detected in dimethylformamide, tetrahydrofuran and ethanol. The aggregates size depended on the thermodynamic quality of the solvent as well as on the macromolecular architectural parameters. In dimethylformamide and tetrahydrofuran, the distribution of hydrodynamic radii of aggregates was bimodal, while in ethanol, it was unimodal. Moreover, in ethanol, an increase in the poly(methyl methacrylate) content caused a decrease in the hydrodynamic radius of aggregates. A significant difference in the nature of the blocks included in the brushes determines the selectivity of the used solvents, since their thermodynamic quality with respect to the blocks is different. The macromolecules of the studied graft copolymers tend to self-organization in selective solvents with formation of a core–shell structure with an insoluble solvophobic core surrounded by the solvophilic shell of side chains.

Crystallization of Molecular Brushes with Block Copolymer Side Chains

2009 ◽  
Vol 42 (22) ◽  
pp. 9008-9017 ◽  
Author(s):  
Sherryl Y. Yu-Su ◽  
Sergei S. Sheiko ◽  
Hyung-il Lee ◽  
Wojciech Jakubowski ◽  
Alper Nese ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Side Chains ◽  
Molecular Brushes

Synthesis of Molecular Brushes with Block Copolymer Side Chains Using Atom Transfer Radical Polymerization

2001 ◽  
Vol 34 (13) ◽  
pp. 4375-4383 ◽  
Author(s):  
Hans G. Börner ◽  
Kathryn Beers ◽  
Krzysztof Matyjaszewski ◽  
Sergei S. Sheiko ◽  
Martin Möller
Keyword(s):  
Block Copolymer ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Side Chains ◽  
Atom Transfer ◽  
Molecular Brushes

scholarly journals An amphiphilic, heterografted polythiophene copolymer containing biocompatible/biodegradable side chains for use as an (electro)active surface in biomedical applications

2019 ◽  
Vol 10 (36) ◽  
pp. 5010-5022 ◽  
Author(s):  
Brenda G. Molina ◽  
Luminita Cianga ◽  
Anca-Dana Bendrea ◽  
Ioan Cianga ◽  
Carlos Alemán ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Redox Reaction ◽  
Biomedical Applications ◽  
Active Surface ◽  
Side Chains ◽  
Hydrophobic Core

Design of an amphiphilic heterografted block copolymer composed of a hydrophobic core backbone and both hydrophilic side chains, able to detect the redox reaction of NADH.

Amphiphilic molecular brushes with regular polydimethylsiloxane backbone and poly-2-isopropyl-2-oxazoline side chains. 1. Synthesis, characterization and conformation in solution

2020 ◽  
Vol 140 ◽  
pp. 110035 ◽  
Author(s):  
Serafim Rodchenko ◽  
Alina Amirova ◽  
Sergey Milenin ◽  
Aleksei Ryzhkov ◽  
Evgeniya Talalaeva ◽  
...  
Keyword(s):  
Side Chains ◽  
Molecular Brushes

Block Copolymer Templating as a Path to Porous Nanostructured Carbons with Highly Accessible Nitrogens for Enhanced (Electro)chemical Performance

2012 ◽  
Vol 213 (10-11) ◽  
pp. 1078-1090 ◽  
Author(s):  
John P. McGann ◽  
Mingjiang Zhong ◽  
Eun Kyung Kim ◽  
Sittichai Natesakhawat ◽  
Mietek Jaroniec ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Nanostructured Carbons

Mixed Molecular Brushes with PLLA and PS Side Chains Prepared by AGET ATRP and Ring-Opening Polymerization

2006 ◽  
Vol 39 (22) ◽  
pp. 7513-7519 ◽  
Author(s):  
Dongxia Wu ◽  
Yongfang Yang ◽  
Xiaohui Cheng ◽  
Li Liu ◽  
Jia Tian ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Side Chains ◽  
Aget Atrp ◽  
Molecular Brushes
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