Photocontrol over the Disorder-to-Order Transition in Thin Films of Polystyrene-block-poly(methyl methacrylate) Block Copolymers Containing Photodimerizable Anthracene Functionality

2011 ◽  
Vol 133 (43) ◽  
pp. 17217-17224 ◽  
Author(s):  
Wei Chen ◽  
Jia-Yu Wang ◽  
Wei Zhao ◽  
Le Li ◽  
Xinyu Wei ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Order Transition ◽  
Poly Methyl Methacrylate

scholarly journals Self-Assembly Investigations of Sulfonated Poly(methyl methacrylate-block-styrene) Diblock Copolymer Thin Films

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Claudia Piñón-Balderrama ◽  
César Leyva-Porras ◽  
Roberto Olayo-Valles ◽  
Javier Revilla-Vázquez ◽  
Ulrich S. Schubert ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Self Assembly ◽  
Volume Fraction ◽  
Degree Of Polymerization ◽  
Solvent Vapor ◽  
Poly Methyl Methacrylate ◽  
Force Microscopy ◽  
Atomic Force

Poly(methyl methacrylate-block-styrene) block copolymers (BCs) of low dispersity were selectively sulfonated on the styrenic segment. Several combinations of degree of polymerization and volume fraction of each block were investigated to access different self-assembled morphologies. Thin films of the sulfonated block copolymers were prepared by spin-coating and exposed to solvent vapor (SVA) or thermal annealing (TA) to reach equilibrium morphologies. Atomic force microscopy (AFM) was employed for characterizing the films, which exhibited a variety of nanometric equilibrium and nonequilibrium morphologies. Highly sulfonated samples revealed the formation of a honeycomb-like morphology obtained in solution rather than by the self-assembly of the BC in the solid state. The described morphologies may be employed in applications such as templates for nanomanufacturing and as cover and binder of catalytic particles in fuel cells.

Nonlinear optical properties of poly(methyl methacrylate) thin films doped with Bixa Orellana dye

2015 ◽  
Vol 340 ◽  
pp. 72-77 ◽  
Author(s):  
S. Zongo ◽  
A.P. Kerasidou ◽  
B.T. Sone ◽  
A. Diallo ◽  
P. Mthunzi ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Methyl Methacrylate ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Bixa Orellana ◽  
Poly Methyl Methacrylate

Study of poly(methyl methacrylate) thin films doped with laser dyes

1999 ◽  
Vol 81 (4) ◽  
pp. 285-291 ◽  
Author(s):  
Jinman Huang ◽  
Vlasoula Bekiari ◽  
Panagiotis Lianos ◽  
Stelios Couris
Keyword(s):  
Thin Films ◽  
Methyl Methacrylate ◽  
Laser Dyes ◽  
Poly Methyl Methacrylate

scholarly journals PREPARATION OF POLY (METHYL METHACRYLATE) THIN FILMS BY SPIN COATING TECHNIQUE FOR OTFT AND WOUND HEALING APPLICATIONS

2018 ◽  
Vol 5 (1) ◽  
pp. 20-22
Author(s):  
Chandar Shekar B ◽  
Ranjit Kumar R ◽  
Dinesh K.P.B ◽  
Sulana Sundari C ◽  
Punithavathi K
Keyword(s):  
Thin Films ◽  
Methyl Methacrylate ◽  
Spin Coating ◽  
Thin Film Transistors ◽  
Amorphous Structure ◽  
Spin Coating Technique ◽  
Prepared Film ◽  
Poly Methyl Methacrylate ◽  
Coating Technique ◽  
Glass Slides

Thin films of poly (methyl methacrylate) (PMMA) were prepared on cleaned glass slides by using spin coating technique. The prepared films were identified by using FTIR spectrum. Surface morphology of the coated films was studied by using SEM and AFM. Both as grown and annealed films showed smooth and amorphous structure. It also revealed the absence of pits, pin holes and dendritic features in the surface. Both as grown and annealed films showed very low RMS roughness value. The morphology analysis revealed that the prepared film could be used as dielectric layer in thin film transistors and as drug delivery system forwound healing.

scholarly journals Synthesis of Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) Block Copolymer by Redox Polymerization and Atom Transfer Radical Polymerization

2018 ◽  
Vol 18 (3) ◽  
pp. 537 ◽  
Author(s):  
Melahat Göktaş ◽  
Guodong Deng
Keyword(s):  
Block Copolymers ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Gel Permeation Chromatography ◽  
High Yield ◽  
Resonance Spectroscopy ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Redox Polymerization

Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) [PMMA-b-PNIPAM] block copolymers were obtained by a combination of redox polymerization and atom transfer radical polymerization (ATRP) methods in two steps. For this purpose, PMMA macroinitator (ATRP-macroinitiator) was synthesized by redox polymerization of methyl methacrylate and 3-bromo-1-propanol using Ce(NH4)2(NO3)6 as a catalyst. The synthesis of PMMA-b-PNIPAM block copolymers was carried out by means of ATRP of ATRP-macroinitiator and NIPAM at 60 °C. The block copolymers were obtained in high yield and high molecular weight. The characterization of products was accomplished by using multi instruments and methods such as nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, gel permeation chromatography, and thermogravimetric analysis.

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