Tunable thermo-responsive P(NIPAAm-co-DMAAm)-b-PLLA-b-P(NIPAAm-co-DMAAm) triblock copolymer micelles as drug carriers

2014 ◽  
Vol 2 (18) ◽  
pp. 2738-2748 ◽  
Author(s):  
Yanfei Hu ◽  
Vincent Darcos ◽  
Sophie Monge ◽  
Suming Li ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Ring Opening ◽  
Triblock Copolymer ◽  
Triblock Copolymers ◽  
Drug Carriers ◽  
Ring Opening Polymerization ◽  
Atom Transfer ◽  
Copolymer Micelles

Thermo-responsive P(NIPAAm-co-DMAAm)-b-PLLA-b-P(NIPAAm-co-DMAAm) triblock copolymers are synthesized via combination of ring-opening polymerization and atom transfer radical polymerization.

Novel Chemoenzymatic Synthesis of Triblock Copolymer

2011 ◽  
Vol 396-398 ◽  
pp. 2459-2462
Author(s):  
Xiao Tian Liu ◽  
Hong Bo Fan
Keyword(s):  
Block Copolymer ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Ring Opening ◽  
Triblock Copolymer ◽  
Sebacic Acid ◽  
Ring Opening Polymerization ◽  
Chemoenzymatic Synthesis ◽  
Atom Transfer ◽  
Novozyme 435

Enzymatic polycondensation of benzyl-2,2-bis(methylol) propionate and sebacic acid has been performed using lipase Novozyme-435 as the catalyst, subsequently enzymatic ring-opening polymerization was reacted by adding ε-caprolactone as the monomer in the same system. Then atom transfer radical polymerization (ATRP) from the macroinitiator combining α-bromoester of styrene was catalyzed by CuCl/2,2’-Dipyridyl to obtain the block copolymer successfully. The polymers obtained in different conditions were analyzed by 1HNMR and GPC.

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.

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