Novel Complex Polymers with Carbazole Functionality by Controlled Radical Polymerization

Nakabayashi, Kazuhiro; Mori, Hideharu

doi:10.1155/2012/170912

Cited by 15 publications

(3 citation statements)

References 132 publications

(133 reference statements)

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“…To this aim, controlled polymerization techniques, i.e., controlled radical or living anionic methods, have to be employed. A variety of research papers describe the synthesis of carbazole-containing block copolymers using controlled radical polymerization [ 27 , 28 , 29 ]. By living anionic polymerization, block copolymers based on olefin monomers containing carbazole groups were also obtained [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Di-Block Copolymers Poly (Propylene oxide)-block-Poly (9-(2,3-epoxypropyl) Carbazole) via Sequential Addition of Monomers in One Pot

et al. 2021

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Polypropylene oxide (PPO) and poly(9-(2,3-epoxypropyl) carbazole) (PEPK) di-block copolymers are prepared in one pot via sequential monomer addition by using i-PrONa/i-Bu3Al as an anionic catalytic system. An almost 100% monomer conversion is obtained, and the length of each block is controlled through the monomer/catalyst ratio used. Copolymer molecular weights are quite close to theoretical values calculated assuming the formation of one polymer chain per catalyst; therefore, it is hypothesized that the polymerization reaction proceeds with a living character. The synthesis appears to be particularly efficient and versatile. The calorimetric properties of copolymers obtained in this work are remarkable, since they show two distinct Tg values, corresponding to the PPO and PEPK blocks. The optical measurements of di-block copolymers show more analogous features than those of PEPK homopolymer. Copolymer solution emission spectra just exhibit isolated carbazole fluorescence, whereas in the solid state, film spectra show excimer fluorescence.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Di-Block Copolymers Poly (Propylene oxide)-block-Poly (9-(2,3-epoxypropyl) Carbazole) via Sequential Addition of Monomers in One Pot

et al. 2021

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“…Poly(N-vinylcarbazole) is one of the extensively studied photoconductive polymers due to its application as hole transporting host in polymer light emitting diodes [1][2][3][4]. In order to tune electrochemical and photophysical properties of poly(N-vinylcarbazole), a great variety of polymers containing carbazole moieties in the side chain were successfully synthesized [5][6][7]. Firstly, poly(meth)acrylates and polystyrenes with pendant carbozolyl group were mainly synthesized through conventional radical mechanism [8][9][10][11][12], although there are several reports where such kind of polymers have been successfully obtained by anionic [13,14] and cationic [15] mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Organocatalytic controlled anionic ring-opening polymerization of carbazole-containing thiiranes

Vaitusionak

Vasilenko

Jatautienė

et al. 2019

European Polymer Journal

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The anionic ring-opening polymerization of carbazole-containing monomers, (9-carbazolylmethyl)thiirane (M1) and (3,6-di-tert-butyl-9-carbazolylmethyl)thiirane (M2), with hexanethiol or pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) as initiators and 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) as catalyst at 20°C in tetrahydrofuran or N,N-dimethylformamide as solvents has been studied. The polymerization of these monomers proceeds in a living fashion affording linear and star-shaped polymers with controlled molecular weight (M n = 4000-15,000 g mol −1 ) and relatively low polydispersity (Đ < 1.3). It was demonstrated that end-capping of polymers by trifluoroacetic anhydride allowed to protect thiol end groups from oxidative coupling, which typically leads to the broadening of molecular weight distribution of the synthesized polymers. The thermal, photophysical and electrochemical properties of the synthesized linear and star-shaped polymers were estimated. On the other hand, anionic ring-opening polymerization of the

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“…Nevertheless, several attempts to synthesize PVK using various controlled radical polymerization systems have been reported in the literature. Polymerization via reversible addition-fragmentation chain transfer (RAFT) can be only readily mediated using xanthates or dithiocarbamate as the chains transfer agent [16,[18][19][20][21] or nitroxide-mediated polymerization (NMP) [22] and by atom transfer radical polymerization (ATRP) [23,24]. Several attempts for synthesis of vinyl polymers having triphenylamine as pendant groups, using controlled radical polymerization (NMP [25][26][27][28] and RAFT [29][30][31][32]) or living anionic route [33][34][35][36][37][38][39][40] have been recently reported.…”

Section: Introductionmentioning

confidence: 99%

Electrogenerated networks from poly[4-(diphenylamino)benzyl methacrylate] and their electrochromic properties

Negru¹,

Vacareanu²,

Grigoraş³

2014

Express Polym. Lett.

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Abstract. benzyl methacrylate] with well-defined molecular weight and low polydispersity was prepared by atom transfer radical polymerization (ATRP) using 4-(diphenylamino) benzyl 2-bromo-2-methyl-propanoate as initiator and CuBr/2,2!-bipyridine as catalytic complex. Electrochemical behavior and optical properties of the polymers were investigated by cyclic voltammetry and UV-Vis and fluorescence spectroscopy. Cyclic votammetric studies revealed that the redox processes were accompanied by dimerization of triphenylamine pendant groups. The initial polymer was postmodified, in solution or bulk, by electrochemical oxidation leading to a crosslinked and insoluble network with electrochromic properties, accompanied by strong color changes with high coloration efficiency. The crosslinking reaction took place between triphenylamine groups through para free positions leading to tetraphenylbenzidine bridges. The structure of polymers was confirmed by Fourier transform infrared (FT-IR) spectroscopy and 1 H and 13 C-nuclear magnetic resonance spectroscopy. Morphology studies of the cross-linked film have evidenced a smooth and continuous aspect without any pinholes or defects.

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Novel Complex Polymers with Carbazole Functionality by Controlled Radical Polymerization

Cited by 15 publications

References 132 publications

Synthesis of Di-Block Copolymers Poly (Propylene oxide)-block-Poly (9-(2,3-epoxypropyl) Carbazole) via Sequential Addition of Monomers in One Pot

Synthesis of Di-Block Copolymers Poly (Propylene oxide)-block-Poly (9-(2,3-epoxypropyl) Carbazole) via Sequential Addition of Monomers in One Pot

Organocatalytic controlled anionic ring-opening polymerization of carbazole-containing thiiranes

Electrogenerated networks from poly[4-(diphenylamino)benzyl methacrylate] and their electrochromic properties

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