pH sensitive amphiphilic conetworks based on end-group cross-linking of polydimethylsiloxane pentablock copolymer and polymethylhydrosiloxane

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17851-17861 ◽  
Author(s):  
Ming Qiu ◽  
Xin-Zheng Zhao ◽  
Da-Peng Liu ◽  
Chun-Ju He
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Ph Sensitive ◽  
Cross Linking ◽  
Atom Transfer ◽  
Ph Responsive ◽  
Pentablock Copolymers ◽  
Pentablock Copolymer ◽  
End Group

A series of pH-responsive amphiphilic conetworks were synthesized through cross-linking of well-defined amphiphilic pentablock copolymers via atom transfer radical polymerization.

Synthesis of binary-patterned brushes by combining atom transfer radical polymerization and ring-opening polymerization

e-Polymers ◽  
2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Aurore Olivier ◽  
Franck Meyer ◽  
Jean-Marie Raquez ◽  
Philippe Dubois
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Ring Opening ◽  
Microcontact Printing ◽  
Gold Surface ◽  
Ring Opening Polymerization ◽  
Careful Study ◽  
Atom Transfer ◽  
Final Thickness ◽  
End Group

Abstract This paper report the synthesis of binary-patterned brushes, combining two distinctive surface initiated-polymerizations (SIP) on the basis of different propagating species: the SI Ring Opening Polymerization (ROP) of L-Lactide (LLA) and SI atom transfer radical polymerization (ATRP) of N,N’-dimethylaminoethyl methacrylate (DMAEMA) on gold surface. First of all, a careful study of surfaceinitiated ROP of L-Lactide from hydroxyl end-group of thiol monolayer on gold surface as catalyzed by metal-free catalyst was carried out. The PLLA brushes synthesis was evaluated using two types of thiol monolayer and revealed the influence of ROP initiator chain length on the final thickness of the PLLA film. Combining the soft lithographic technique, microcontact printing, and the liquid phase deposition, the deposition onto specific micro-domains of both initiators was performed. The growth of PDMAEMA brushes and PLLA brushes was conducted by successive ATRP and ROP.

ATRP Synthesis of PS-b-PtBMA and Preparation of Porous Film

2013 ◽  
Vol 364 ◽  
pp. 679-683
Author(s):  
Chang Hao Yan ◽  
Zhi Jiao Zhang ◽  
Hai Yan Chen ◽  
Zhong Yi Xie ◽  
Ting Zhu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Catalyst System ◽  
Porous Film ◽  
Atom Transfer ◽  
H Nmr ◽  
Breath Figure ◽  
Breath Figure Method ◽  
End Group

The polystyrene with end group of Br was synthesized by using MBrP as the initiator, CuBr/ PMDETA as the catalyst system according to atom transfer radical polymerization (ATRP). The effect of reaction temperature was studied and the system was confirmed as the active polymerization. Then PS-Br and CuBr/ PMDETA were respectively used as macroinitiator and catalyst to polymerize tBMA according to atom transfer radical polymerization (ATRP). The structure of the product was characterized by GPCFTIR1H-NMR. The amphiphilic block copolymer was obtained after hydrolysis. And the honeycomb porous film was prepared by PS-b-PMAA through using breath figure method.

pH-sensitive membranes prepared with poly(methyl methacrylate) grafted poly(vinylidene fluoride) via ultraviolet irradiation-induced atom transfer radical polymerization

RSC Advances ◽  
2014 ◽  
Vol 4 (74) ◽  
pp. 39273-39279 ◽  
Author(s):  
Helin Hua ◽  
Ying Xiong ◽  
Caijie Fu ◽  
Na Li
Keyword(s):  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Uv Irradiation ◽  
Ultraviolet Irradiation ◽  
Vinylidene Fluoride ◽  
Ph Sensitive ◽  
Atom Transfer ◽  
Poly Methyl Methacrylate ◽  
Poly Vinylidene Fluoride

Ultraviolet (UV) irradiation induced atom transfer radical polymerization (ATRP) was performed to graft poly(methyl methacrylate) (PMMA) onto poly(vinylidene fluoride) (PVDF) and obtain copolymer (PVDF-g-PMMA).

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