Random Poly(methyl methacrylate-co -styrene) Brushes by ATRP to Create Neutral Surfaces for Block Copolymer Self-Assembly

2011 ◽  
Vol 213 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Hui Liu ◽  
Colm T. O'Mahony ◽  
Fabrice Audouin ◽  
Claudia Ventura ◽  
Michael Morris ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Self Assembly ◽  
Poly Methyl Methacrylate

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.

Investigation of cross-linking poly(methyl methacrylate) as a guiding material in block copolymer directed self-assembly

2014 ◽  
Author(s):  
Robert Seidel ◽  
Paulina Rincon Delgadillo ◽  
Abelardo Ramirez-Hernandez ◽  
Hengpeng Wu ◽  
Youngjun Her ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Self Assembly ◽  
Cross Linking ◽  
Poly Methyl Methacrylate

Synthesis of poly(methyl methacrylate)-b-poly(acrylic acid) by DPE method

e-Polymers ◽  
2008 ◽  
Vol 8 (1) ◽  
Author(s):  
Dong Chen ◽  
Ruixue Liu ◽  
Zhifeng Fu ◽  
Yan Shi
Keyword(s):  
Molecular Weight ◽  
Acrylic Acid ◽  
Methyl Methacrylate ◽  
Diblock Copolymer ◽  
Self Assembly ◽  
Gel Permeation Chromatography ◽  
Amphiphilic Diblock Copolymer ◽  
Poly Methyl Methacrylate ◽  
Copolymer Poly ◽  
Poly Acrylic Acid

AbstractAmphiphilic diblock copolymer poly(methyl methacrylate)-b-poly(acrylic acid) (PMMA-b-PAA) was prepared by 1,1-diphenylethene (DPE) method. Firstly, free radical polymerization of methyl methacrylate was carried out with AIBN as initiator in the presence of DPE, giving a DPE-containing PMMA precursor with controlled molecular weight. tert-Butyl acrylate (tBA) was then polymerized in the presence of the PMMA precursor, and PMMA-b-PtBA diblock copolymer with controlled molecular weight was prepared. Finally, amphiphilic diblock copolymer PMMA-b-PAA was obtained by hydrolysis of PMMA-b-PtBA. The formation of PMMA-b-PAA was confirmed by 1H NMR spectrum and gel permeation chromatography. Transmission electron microscopy and dynamic light scattering were used to detect the self-assembly behavior of the amphiphilic diblock polymers in methanol.

Switchable Block Copolymer Surfactants for Preparation of Reversibly Coagulatable and Redispersible Poly(methyl methacrylate) Latexes

2013 ◽  
Vol 46 (4) ◽  
pp. 1261-1267 ◽  
Author(s):  
Qi Zhang ◽  
Guoqiang Yu ◽  
Wen-Jun Wang ◽  
Haomiao Yuan ◽  
Bo-Geng Li ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate

Self-assembly and nanostructure of poly(vinyl alcohol)-graft-poly(methyl methacrylate) amphiphilic nanoparticles

2019 ◽  
Vol 553 ◽  
pp. 512-523 ◽  
Author(s):  
Hen Moshe Halamish ◽  
Jiří Trousil ◽  
Dmytro Rak ◽  
Kenneth D. Knudsen ◽  
Ewa Pavlova ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Self Assembly ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Poly Methyl Methacrylate ◽  
Amphiphilic Nanoparticles
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