Cross linking-dependent properties of PVK-MEH-PPV bi-block copolymer: Vibrational, thermal and optical properties

2019 ◽  
Vol 126 ◽  
pp. 274-279 ◽  
Author(s):  
Faten Abbassi ◽  
Mohamed Mbarek ◽  
David Kreher ◽  
Kamel Alimi
Keyword(s):  
Optical Properties ◽  
Block Copolymer ◽  
Cross Linking

Unraveling the stress effects on the optical properties of stretchable rod-coil polyfluorene-poly(n-butyl acrylate) block copolymer thin films

2018 ◽  
Vol 9 (27) ◽  
pp. 3820-3831 ◽  
Author(s):  
Hui-Ching Hsieh ◽  
Chih-Chien Hung ◽  
Kodai Watanabe ◽  
Jung-Yao Chen ◽  
Yu-Cheng Chiu ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Block Copolymer ◽  
Butyl Acrylate ◽  
Stress Effects ◽  
Strain Dependent

Novel deformable and fluorescent PF-b-PBA copolymers with nanofibrillar structures were synthesized for unraveling strain-dependent optical properties.

Salicylaldehyde-functionalized block copolymer nano-objects: one-pot synthesis via polymerization-induced self-assembly and their simultaneous cross-linking and fluorescence modification

2016 ◽  
Vol 7 (29) ◽  
pp. 4761-4770 ◽  
Author(s):  
Jianbing Huang ◽  
Hanjun Zhu ◽  
Hui Liang ◽  
Jiang Lu
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Cross Linking ◽  
Simultaneous Stabilization ◽  
One Pot ◽  
One Pot Synthesis ◽  
One Step

Salicylaldehyde-functionalized nano-objects are prepared via RAFT-mediated polymerization-induced self-assembly. Their simultaneous stabilization and fluorescence modification can be achieved by one-step reaction.

scholarly journals Low-Temperature Plasma Modification of Styrene–Butadiene Block Copolymer Surfaces for Improved Adhesion—A Kinetic Approach

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 935 ◽  
Author(s):  
Jacek Tyczkowski ◽  
Hanna Kierzkowska-Pawlak ◽  
Jan Sielski ◽  
Iwona Krawczyk-Kłys
Keyword(s):  
Block Copolymer ◽  
Low Temperature ◽  
Plasma Treatment ◽  
Treatment Time ◽  
Peel Strength ◽  
Cross Linking ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Plasma Treatment Time ◽  
Styrene Butadiene

This paper proposed a kinetic model that can describe the changes in the adhesion properties of styrene–butadiene (SBS) block copolymer surfaces under the influence of low-temperature plasma treatment. As a measure of these changes, the peel strength of joints formed between the copolymer surface and the polyurethane adhesive was chosen. Five types of low-temperature low-pressure RF plasma, two inert plasmas (Ar and He), and three reactive plasmas (O2, CO2, and CCl4) were tested. It was found that for all these types of plasma, the peel strength with the plasma treatment time first increases rapidly reaching a maximum value, and then there is a visible decrease in peel strength, after which the peel strength increases again. This dependence of the peel strength on the plasma treatment time is very well described by the proposed model, which considers three processes: (1) the generation of radical states followed by the creation of functional groups involved in the adhesive bonding process, (2) the surface cross-linking that decreases the concentration of these functional groups, and (3) the formation of nano-roughness. The model analysis revealed differences between the action of reactive and inert plasmas in the SBS surface cross-linking mechanism and preferential etching process, as well as differences in the generation of radical states between the O2 plasma (electron process) and other plasmas tested (ionic processes).

Cross-Linking of Cationic Block Copolymer Micelles by Silica Deposition

2007 ◽  
Vol 129 (6) ◽  
pp. 1717-1723 ◽  
Author(s):  
Jian-Jun Yuan ◽  
Oleksandr O. Mykhaylyk ◽  
Anthony J. Ryan ◽  
Steven P. Armes
Keyword(s):  
Block Copolymer ◽  
Cross Linking ◽  
Silica Deposition ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles
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