Amphiphilic Polymer Brushes Grown from the Silicon Surface by Atom Transfer Radical Polymerization

2001 ◽  
Vol 34 (6) ◽  
pp. 1837-1844 ◽  
Author(s):  
Xiangxing Kong ◽  
Tadashi Kawai ◽  
Jiro Abe ◽  
Tomokazu Iyoda
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Silicon Surface ◽  
Amphiphilic Polymer ◽  
Atom Transfer

Well-Defined Amphiphilic Polymer-Si(100) Hybrids via Surface-Initiated Atom Transfer Radical Polymerization

2013 ◽  
Vol 669 ◽  
pp. 239-245 ◽  
Author(s):  
Jin Wen Peng ◽  
Riu Hua Mo ◽  
Zhen Fan Liu ◽  
Yuan Wei Zhong ◽  
Qin Jie ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Photoelectron Spectroscopy ◽  
Polymer Brushes ◽  
Amphiphilic Polymer ◽  
Atom Transfer ◽  
Poly Ethylene Glycol ◽  
X Ray ◽  
Atomic Force ◽  
Poly Ethylene

Well-defined amphiphilic graft polymer brushes containing fluoropolymer segments have been successfully prepared by (i) UV-induced coupling of 4-vinylbenzyl chloride (VBC) with the hydrogen-termined Si(100) (Si-VBC surface), (ii) surface-initiated atom transfer radical polymerization (ATRP) of 2-hydroxyethl methacrylate (HEMA) to produce the Si–VBC–g–P(HEMA) surface as the backbone of macroinitiator for further ATRPs, (iii) coupling of 2-bromoisobutyrl bromide with the HEMA polymer(P(HEMA)) by the esterification to produce the macroinitiators for the subsequent ATRP(Si–VBC–g–P(HEMA)-R3Br), (iv) surface-initiated ATRP of 2,2,3,3,4,4,4-heptafluorobutyl acrylate (HFBA) to produce the Si–VBC–g–P(HEMA)–g–P(HFBA) surface, and (v) the active P(HFBA) chain ends being used as the initiator for the subsequent ATRP of poly(ethylene glycol) monomethacrylate (PEGMA) to produce the amphiphilic Si–VBC–g–P(HEMA)–g–P(HFBA)–b–P(PEGMA) brush surface. The chemical composition and functionality of the silicon surface were characterised by X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM) and ellipsometry.

AMPHIPHILIC COMB-SHAPED DIBLOCK POLYMER BRUSHES ONSi(100) SUBSTRATES VIA SURFACE-INITIATED ATOM TRANSFER RADICAL POLYMERIZATION

2006 ◽  
Vol 13 (02n03) ◽  
pp. 251-257 ◽  
Author(s):  
JIN-WEN PENG ◽  
WEI HUANG ◽  
EN-TANG KANG ◽  
KOON GEE NEOH
Keyword(s):  
Ethylene Glycol ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Silicon Surface ◽  
Atom Transfer ◽  
Hydroxyethyl Methacrylate ◽  
Poly Ethylene Glycol ◽  
Copolymer Brushes ◽  
Poly Ethylene

Amphiphilic comb-shaped 2-hydroxyethyl methacrylate-graft-poly(styrene)-block-poly(poly (ethylene glycol) monomethacrylate) ( P ( HEMA )–g– PS –b– P ( PEGMA )) copolymer brushes, covalently tethered on Si (100) substrate, have been successfully prepared by (i) UV-induced hydrosilylation of 4-vinylbenzyl chloride (VBC) with the hydrogen-terminated Si (100) ( Si – VBC surface), (ii) surface-initiated atom transfer radical polymerization (ATRP) of 2-hydroxyethyl methacrylate (HEMA) to give the Si – VBC –g– P ( HEMA ) surface, (iii) coupling of 2-bromoisobutyryl bromide with the HEMA units via esterification to provide the comb-shaped macroinitiators ( Si – VBC –g– P ( HEMA )– R3Br ) for the subsequent ATRP, (iv) surface-initiated ATRP of styrene (St) to produce the Si – VBC –g– P ( HEMA )–g– PS surface, and (v) the persisting of an active PS chain end can be used as the initiator for the subsequent ATRP of poly(ethylene glycol) monomethacrylate (PEGMA) to give the amphiphilic Si – VBC –g– P ( HEMA )–g– PS –b– P ( PEGMA ) brush surface. The chemical composition and functionality of the silicon surface were tailored by the well-defined comb-shaped PS and P (PEGMA) brushes.

Versatile procedure for site-specific grafting of polymer brushes on patchy particles via atom transfer radical polymerization (ATRP)

2016 ◽  
Vol 7 (16) ◽  
pp. 2858-2869 ◽  
Author(s):  
Bas G. P. van Ravensteijn ◽  
Willem K. Kegel
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Building Blocks ◽  
Atom Transfer ◽  
Site Specific ◽  
Patchy Particles

Combining chemically anisotropic colloids with Surface-Initiated ATRP enables for site-specific grafting of p(NIPAM) brushes. The resulting, partially grafted particles are employed as colloidal building blocks for finite-sized clusters.

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