Synthesis of cationic amphiphilic diblock copolymers of poly(vinylbenzyl triethylammonium chloride) and polystyrene by reverse iodine transfer polymerization (RITP)

Patra, Braja N.; Rayeroux, David; Lacroix‐Desmazes, Patrick

doi:10.1016/j.reactfunctpolym.2010.03.006

Cited by 26 publications

(24 citation statements)

References 28 publications

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“…The living character of the polymerization was confirmed by the extension of polymer chains in seeded emulsion polymerization of styrene. In another work, this school [94] synthesized diblock copolymers poly(vinylbenzyl chloride)-b-polystyrene (PVBC-b-PS) with different chain lengths in toluene, employing AIBN-based RITP method. Molecular weight of the diblock copolymer was nearly 10,000 with a PDI of 1.66.…”

Section: Controlled Radical Polymerizationmentioning

confidence: 99%

Molecular iodine in monomer and polymer designing

Moulay

2013

Designed Monomers and Polymers

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Not only does the molecular iodine play a leading role in organic synthesis but also in the polymer synthesis. Different kinds of polymerization initiated by molecular iodine are herein screened: cationic polymerization, radical polymerization, living/controlled radical polymerization (LCRP) such as reverse iodine transfer polymerization, polycondensation, and ring-opening polymerization (ROP). Also, the functionalization of polymers using molecular iodine, such as the acetylation of polysaccharides (cellulose, starch), and the use of iodine-polymer complex in organic synthesis are also discussed. Numerous natural and synthetic polymers are prone to make complexes with molecular iodine, and one feature of such complexes is their propensity as polymer-supported reagent and catalysts in many organic syntheses.

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Section: Controlled Radical Polymerizationmentioning

confidence: 99%

Molecular iodine in monomer and polymer designing

Moulay

2013

Designed Monomers and Polymers

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“…In a future study, it would probably be interesting to test other CTAs with a higher transfer constant in order to improve the control of the polymerization. For example, Patra et al70 polymerized CMS by reverse iodine transfer polymerization, a living radical polymerization where molecular iodine is introduced in the reaction medium to generate the iodinated transfer agent in situ ). They obtained poly(chloromethylstyrene) (PCMS) polymers with narrower molecular weight distributions (MWDs; 1.4 < PDI < 1.7).…”

Section: Resultsmentioning

confidence: 99%

Random and block styrenic copolymers bearing both ammonium and fluorinated side‐groups

Valade

Boschet

Améduri

2011

J. Polym. Sci. A Polym. Chem.

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1H,1H,2H,2H‐Perfluorooctyloxymethylstyrene (FS) was prepared and copolymerized with chloromethylstyrene (CMS). Conventional radical copolymerization of both these aromatic monomers led to poly(CMS‐co‐FS) random copolymers for which CMS was shown to be more reactive than the fluorinated comonomer. Their controlled radical copolymerization based on degenerative transfer, namely iodine transfer polymerization (ITP), led to various poly(CMS)‐b‐poly(FS) block copolymers. Molecular weights of poly(CMS‐co‐FS) copolymers reached 33,000 g mol−1 while those of poly(CMS)‐b‐ poly(FS) block copolymers were 22,000 g mol−1. Their composition ranged from 18 to 61 mol.% in FS. These copolymers were modified via a cationization step, aiming at replacing the chlorine atom in CMS unit by a trimethylammonium group, leading to the formation of cationic sites. The resulting functionalized copolymers exhibited different solubilities. If both copolymerization techniques led to water‐insoluble copolymers, the block architecture enabled incorporating lower FS proportion, resulting in more cationic sites. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011

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“…The low cost of molecular iodine and the simplicity of the technique (the chain transfer agents are synthesized in situ at the beginning of the polymerization) are enormous advantages over other techniques. Synthesis of different types of block copolymers using RITP have been reported [16][17][18] demonstrating the efficiency of this technique, regulated by a degenerative transfer mechanism. The controlled synthesis of poly(methyl methacrylate) (PMMA) by RITP in toluene has been reported by Lacroix-Desmazes and coworkers [19][20][21], attaining molecular weights between 5000 and 20000 g/mol.…”

Section: Introductionmentioning

confidence: 95%

Cast Nanostructured Films of Poly(methyl methacrylate‐b‐butyl acrylate)/Carbon Nanotubes: Influence of Poly(butyl acrylate)Content on Film Evaporation Rate, Morphology, and Electrical Resistance

Soriano‐Corral¹,

Valle²,

Enriquez-Medrano³

et al. 2012

Journal of Nanomaterials

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Nanocomposites of poly(methyl methacrylate-b-butyl acrylate)/multiwalled carbon nanotubes were prepared from different copolymers synthesized by RITP technique using iodine functionalized poly(methyl methacrylate) as macrochain transfer agent to obtain block copolymers with butyl acrylate as comonomer in a sequential copolymerization. Poly(butyl acrylate) contents of 7, 20, and 30 wt% were attained in each copolymer. These copolymers were used to prepare nanostructured films by casting process, using chloroform as solvent, and carboxyl functionalized MWCNT at 0.4, 0.6, 0.8, 1.0, and 1.2 wt%. During the film preparation, the absolute drying rate (N) was calculated with respect to the poly(butyl acrylate) and MWCNT composition. For copolymers containing 7 and 20 wt% of poly(butyl acrylate) the N values slightly decrease with the MWCNT concentration, while for the suspension prepared with the copolymer at 30 wt% of poly(butyl acrylate) the N values decrease drastically down to 50% approximately. The MWCNT content at the percolation threshold point was found to be 0.8 wt%, for all nanostructured films. The dispersion of MWCNT within the polymer matrix decreased with increasing the poly(butyl acrylate) composition, but it did not affect the electrical properties, which is assumed to be due to induction of the bridging effect and the MWCNT preference to locate into the poly(methyl methacrylate) phase.

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Synthesis of cationic amphiphilic diblock copolymers of poly(vinylbenzyl triethylammonium chloride) and polystyrene by reverse iodine transfer polymerization (RITP)

Cited by 26 publications

References 28 publications

Molecular iodine in monomer and polymer designing

Molecular iodine in monomer and polymer designing

Random and block styrenic copolymers bearing both ammonium and fluorinated side‐groups

Cast Nanostructured Films of Poly(methyl methacrylate‐b‐butyl acrylate)/Carbon Nanotubes: Influence of Poly(butyl acrylate)Content on Film Evaporation Rate, Morphology, and Electrical Resistance

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