A Novel Strategy to Synthesize Double Comb‐Shaped Water Soluble Copolymer by RAFT Polymerization

Han, Dehui; Pan, Chen

doi:10.1002/macp.200600026

Cited by 28 publications

(18 citation statements)

References 33 publications

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“…The field of future applications is then widely opened. [227] Dithiobenzoate and trithiocarbonate chain ends P(styrene) produced by NMP [228] P(styrene) PEG [73] P(styrene) multiblocks PEG multiblocks [229] P(NIPAm) PLA produced by ROP [74,75] Xanthate, dithiocarbamate trithiocarbonate chain ends P(ethylene) produced by catalytic polymerization [230] P(styrene) and P(tBA) P(butadiene) produced by ROMP [231] Comb-shaped polymers P(BIEM)-based methacrylic backbones P(MA-co-1-Oct) produced by ATRP and PEG side chains [232] P(NPMI-co-pCMS) backbone P(styrene) side chains produced by ATRP [233] P(styrene-co-pVBSC) backbone PMMA side chains produced by ATRP [234] P(HEMA-co-styrene) backbone PCL side chains produced by ROP [235] Methacrylic backbone PEG side chains [236] Methacrylic and PGMA backbone blocks PEG side chains [77] Methacrylic and PNIPAm backbone blocks PEG side chains [84] PMMA backbone PDMS and PLA side chains [237] P(MA-b-styrene-co-pCMS) backbone P(THF) side chains produced by cationic ROP [238] Methacrylic backbone Lateral dendrons [239] (Continued) …”

Section: Discussionmentioning

confidence: 99%

“…The various synthetic routes to obtain these 'smart' materials have been recently compiled by McCormick et al and will not be detailed here [79]. The different kinds of stimuliresponsive block copolymers can be classified according to their nature: Ĺ hydrophilic block copolymers that bear only one stimuli-responsive segment, either temperature responsive [80][81][82][83][84][85] or pH-and ionic strength responsive [83,[86][87][88][89][90][91][92], Ĺ hydrophilic block copolymers that bear two stimuli-responsive segments or 'schizophrenic' block copolymers [83,85,[93][94][95][96][97] and Ĺ amphiphilic block copolymers that bear one or several stimuli-responsive segments [39, 74-76, 83, 98-102].…”

Section: Drug Deliverymentioning

confidence: 99%

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Toward New Materials Prepared via the RAFT Process: From Drug Delivery to Optoelectronics?

Favier

Lambert

Charreyre

2008

Handbook of RAFT Polymerization

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IntroductionThe development of controlled/living ionic and radical polymerization techniques during the last decades represents a major breakthrough in polymer chemistry and polymer science. Since these techniques lead to the synthesis of a wide range of tailor-made macromolecular architectures, significant improvements are expected in the current or future application fields of polymers. The industrial impact will however depend on the versatility and applicability of each technique, and of course on the extra cost for the final product.In this context, controlled radical polymerizations (CRP) and especially the reversible addition-fragmentation chain transfer (RAFT) process [1-3] have attracted a lot of attention since they combine the advantages of conventional radical polymerization and living ionic polymerizations. Conventional radical polymerizations are cost-effective techniques, easy to process with a low sensitivity to water and oxygen and applicable to a wide range of monomers. In addition, CRP techniques result in a very efficient control over molecular weight (MW), molecular-weight distribution (MWD), microstructure, chain-end functionality and macromolecular architecture.As shown in the previous chapters of this handbook, the RAFT process appears as one of the most interesting CRP techniques. First, RAFT polymerization is very similar to conventional radical polymerization since it only requires the addition of a chain-transfer agent (CTA) in the medium. Second, RAFT is a very versatile process able to control the (co)polymerization of a large variety of monomers leading to a virtually unlimited macromolecular design library.As a consequence, RAFT polymerization is a well-suited and promising technique to prepare high-performance polymers for a wide range of applications. Indeed, an efficient control at the macromolecular level is a very important step to control and improve the macroscopic properties of the final materials ( Fig. 13.1).

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Section: Discussionmentioning

confidence: 99%

Section: Drug Deliverymentioning

confidence: 99%

Toward New Materials Prepared via the RAFT Process: From Drug Delivery to Optoelectronics?

Favier

Lambert

Charreyre

2008

Handbook of RAFT Polymerization

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“…The macromolecular chains with an extended conformation and big hydrodynamic radius form a comb shape in solution . These structural characteristics make comb‐shape copolymers good tackifying, antisalt, antishear, and antiaging properties …”

Section: Introductionmentioning

confidence: 99%

“…[ 20 ] These structural characteristics make comb-shape copolymers good tackifying, antisalt, antishear, and antiaging properties. [21][22][23][24][25][26] In this study, we describe one-step synthesis of amphiphilic comb-shape copolymers PCL-co -P(MTC-mPEG 16 ) by ring-opening polymerization of ε -caprolactone (ε-CL) and cyclic carbonate-terminated PEG macromonomer (MTC-mPEG 16 ) with benzyl alcohol as an initiator and Sn(Oct) 2 as a catalyst. The synthesis route is very simple and easy for operation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Amphiphilic Comb-Shape Copolymers Via Ring-Opening Polymerization of a Macromonomer

Zhang

et al. 2015

Macromol. Chem. Phys.

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Amphiphilic comb‐shape copolymers PCL‐co‐P(MTC‐mPEG16) (where PCL, MTC, and mPEG refer to poly(ε‐caprolactone), 2‐methyltrimethylene carbonate, and methoxy poly(ethylene glycol), respectively) are synthesized by ring‐opening polymerization of ε‐caprolactone and cyclic carbonate‐terminated PEG macromonomer (MTC‐mPEG16) with benzyl alcohol as an initiator and Sn(Oct)2 as a catalyst. Amphiphilic copolymers PCL‐co‐P(MTC‐mPEG16) can form micelles in aqueous solution by self‐assembly. The diameters of PCL‐co‐P(MTC‐mPEG16) micelles characterized by dynamic light scattering area few dozens of nanometers with a narrow size distribution and the morphology of the micelles observed through transmission electron microscopy are nanosized spheres. The in vitro drug release of comb‐shape copolymer PCL‐co‐P(MTC‐mPEG16) micelles is more stable and sustained than that of linear block copolymers mPEG‐b‐PCL.

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“…Macromonomers are unique polymers having a polymerizable terminal group. They are applicable for construction of a series of branched polymer architectures which have been attracting attention because of their intriguing characters [1][2][3][4][5]. Designs of polymer architectures with various compositions via macromonomer method have been widely studied since this method has advantages in controlling the nature of branches, branch densities, branch chain lengths, and tacticity and polydispersity of branches [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Multibranched Polycarbonates Synthesized via Interfacial Polycondensation using Uniform Size Hemi-Telechelic Polystyrene Macromonomers having a Dihydroxyphenyl End-Group

Yamamoto

Uchimura

Adachi

et al. 2010

Designed Monomers and Polymers

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Multibranched polycarbonates with uniform size polystyrene side-groups were obtained by means of hemitelechelic polystyrene macromonomers having a 2,5-dihydrobenzyl end-group. Polystyrene pre-polymers for macromonomers having a methoxy-protected dihydroxyphenyl group were synthesized through ATRP method with 2,5-dimethoxybenzyl bromide as an initiator. After deprotection by dealkylation of the methoxy group, we obtained polystyrene macromonomers. Preparation of the corresponding polycarbonate bearing polystyrene side-chains was conducted via interfacial polycondensation of bisphenol A and bisphenol A bis(chloroformate) in the presence of the macromonomers. DSC measurements of the obtained multibranched polymers showed two glass transition temperatures derived from polystyrene and polycarbonate, which indicated the phase-separated morphology of the bulk film.

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A Novel Strategy to Synthesize Double Comb‐Shaped Water Soluble Copolymer by RAFT Polymerization

Cited by 28 publications

References 33 publications

Toward New Materials Prepared via the RAFT Process: From Drug Delivery to Optoelectronics?

Toward New Materials Prepared via the RAFT Process: From Drug Delivery to Optoelectronics?

Synthesis of Amphiphilic Comb-Shape Copolymers Via Ring-Opening Polymerization of a Macromonomer

Multibranched Polycarbonates Synthesized via Interfacial Polycondensation using Uniform Size Hemi-Telechelic Polystyrene Macromonomers having a Dihydroxyphenyl End-Group

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