Synthesis of Pentablock Copolymers of the Mixed Linear-Brush Topology by Controlled Radical Polymerization and Ring-Opening Polymerization Reactions

Organocatalysts were employed in LED-induced controlled radical polymerization, sequentially combined with ring-opening polymerization to obtain copolymers using one organocatalyst.

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Preparation and Characterization of Poly (vinylbenzyl chloride)-b-poly (lactide) Copolymers via Nitroxide-Mediated Controlled Radical and Ring-Opening Polymerization

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.554-556.295 ◽

2012 ◽

Vol 554-556 ◽

pp. 295-298 ◽

Cited By ~ 1

Author(s):

Shao Hua Shen ◽

Ying Xiang Duan ◽

Qing Quan Liu ◽

Qiu Guao Xiao

Keyword(s):

Molecular Weight ◽

Radical Polymerization ◽

1H Nmr ◽

Ring Opening ◽

Ring Opening Polymerization ◽

Controlled Radical Polymerization ◽

Polydispersity Index ◽

Molecular Weights ◽

Lactide Copolymers

Hydroxyl-terminated poly(vinylbenzyl chloride) (PVBCOH) were synthesized using nitroxide-mediated controlled radical polymerization. Then, PVBCOH was used as a macro-initiator for ring-opening polymerization of lactide (LA) in the presence of stannous octanoate (Sn(Oct)2) as a catalyst. The structures, molecular weights and polydispersity index (PDI) of PVBCOH and PVBC-b-PLA were characterized by 1H-NMR, and GPC, respectively. The results indicated that PDI of PVBCOH and PVBC-b-PLA was 1.63 and 1.27, respectively. Moreover, the molecular weight and PDI of PVBCOH and PVBC-b-PLA could be well tuned by changing monomer-to-initiator ratio.

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Novel tailor-made diols for polyurethane coatings using a combination of controlled radical polymerization, ring opening polymerization, and click chemistry

Journal of Coatings Technology and Research ◽

10.1007/s11998-009-9210-4 ◽

2009 ◽

Vol 7 (4) ◽

pp. 409-417 ◽

Cited By ~ 8

Author(s):

Ankit Vora ◽

Mohammed J. Nasrullah ◽

Dean C. Webster

Keyword(s):

Click Chemistry ◽

Radical Polymerization ◽

Ring Opening ◽

Ring Opening Polymerization ◽

Controlled Radical Polymerization ◽

Polyurethane Coatings

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

e-Polymers ◽

10.1515/epoly-2013-0109 ◽

2013 ◽

Vol 13 (1) ◽

Cited By ~ 2

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.

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