Influence of Cationic Symmetric Polymethine Dyes on Radical Polymerization of Methylmethacrylate in Solution

Grabchuk, G. P.; Ishchenko, A. A.; Kolendo, A.

doi:10.1080/15421400801918195

Cited by 2 publications

(3 citation statements)

References 4 publications

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“…The authors suggest that this is due to the high fluorescent ability of the dyes since nonluminescent azo and anthraquinone dyes conversely retard such reactions [206][207][208]. However, the most recent investigations do not support this suggestion [121][122][123]. It was shown that the carbocyanine dye based on benz[c,d]indole, which has extremely weak fluorescence ability [209], substantially accelerates the radical polymerization of MMA [123].…”

Section: Structurally Dyed Polymersmentioning

confidence: 93%

“…It was found that the series of cationic polymethine dyes is capable of initiating the radical thermopolymerization of MMA extremely effectively in the mass [120] and in solution [121][122][123] without an initiator. This ability changes if the terminal heterocyclic groups deviate from the average electron-donating capacity in the direction of both increase and decrease [123].…”

Section: Methods Of Introduction Of Dyes Into the Polymer And Their Cmentioning

confidence: 99%

“…On the other hand the readily fluorescent indotricarbocyanine (8) [209], well known as an HITC laser dye [58], is an inhibitor of this reaction [123]. Such behavior in these dyes is observed both in the presence of an initiator and in its absence [121][122][123].…”

Section: Structurally Dyed Polymersmentioning

confidence: 99%

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Physical and chemical problems of the creation of photostable converters of light energy on the basis of dyed polymers

Ishchenko

Grabchuk

2009

Theor Exp Chem

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The main factors affecting the degradation of dyed polymeric matrices by the action of light (conversion of light energy into thermal energy, electron phototransfer, population of triplets, aggregation of dyes, oxidation-reduction processes, interaction with oxygen, including singlet) are analyzed and classified. Their dependence on the structure of the dyes, the nature of the polymer, and the method of dyeing of the latter is examined. Criteria for the creation of lightfast dyed matrices are formulated. Special attention is directed to contemporary light-sensitive materials in which the dye is covalently bonded to the polymer and to organic-inorganic compositions based on them.Dyed polymers are widely used in laser technology [1][2][3][4][5], media for writing and recording data [6-8], solar power [9][10][11][12], and optoelectronics [12][13][14][15]. Such polymeric materials have a series of operational advantages over dyed liquid materials on account of their more simple and more convenient construction, non-toxicity, and the possibility of working over a wide temperature range (from minus to plus temperatures) and under conditions of weightlessness. However, these advantages can only be realized to the full extent in the solution of various applied problems if dyed matrices with sufficient stability to the action of light are created. The aim of the present review was therefore to analyze, classify, and generalize methods of creating such matrices. FACTORS GIVING RISE TO THE DEGRADATION OF DYED POLYMERS DURING THE ACTION OF LIGHTThe presence of absorbing microimpurities that are heated by radiation are responsible for the radiation damage of optically transparent polymers. Purification from such inclusions at the monomer stage leads to a substantial increase in the threshold of radiation damage in the obtained polymer. For instance, the purification of methylmethacrylate (MMA) by repeated slow distillation raises this threshold of polymethylmethacrylate (PMMA) from several times [16] to two orders of magnitude [17]. 0040-5760/09/4503-0143

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Section: Structurally Dyed Polymersmentioning

confidence: 93%

Section: Methods Of Introduction Of Dyes Into the Polymer And Their Cmentioning

confidence: 99%

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Physical and chemical problems of the creation of photostable converters of light energy on the basis of dyed polymers

Ishchenko

Grabchuk

2009

Theor Exp Chem

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Effect of Polymethine Dyes with Various Electron-Donating Abilities of Terminal Groups on Thermopolymerization of Methylmethacrylate in Solutions

Grabchuk

Kolendo

Derevyanko

et al. 2008

Molecular Crystals and Liquid Crystals

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Influence of Cationic Symmetric Polymethine Dyes on Radical Polymerization of Methylmethacrylate in Solution

Cited by 2 publications

References 4 publications

Physical and chemical problems of the creation of photostable converters of light energy on the basis of dyed polymers

Physical and chemical problems of the creation of photostable converters of light energy on the basis of dyed polymers

Effect of Polymethine Dyes with Various Electron-Donating Abilities of Terminal Groups on Thermopolymerization of Methylmethacrylate in Solutions

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