Reactions of trithiocyanuric acid with oxiranes. III. Reactions with epichlorohydrin

Kucharski, Mieczysław; Chmiel-Szukiewicz, Elżbieta

doi:10.1002/app.10648

Cited by 3 publications

(5 citation statements)

References 12 publications

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“…1 Polyetherols of such properties can be obtained from the reactions of TTCA with an excess of epichlorohydrin (ECH). 2 These reactions should be conducted without a solvent or catalyst (unlike reactions with EO and PO); otherwise, crosslinking of the products takes place. Moreover, in products of these reactions, some amount of 1,3-dichloropropan-2-ol can be found.…”

Section: Introductionmentioning

confidence: 99%

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Reactions of trithiocyanuric acid with oxiranes. IV. Analysis of the initial stages of the synthesis of polyetherols

Chmiel-Szukiewicz

Lubczak

2006

J of Applied Polymer Sci

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ABSTRACT:The course of the reaction of trithiocyanuric acid (TTCA) with oxiranes, propylene oxide (PO), and epichlorohydrin in a dimethyl sulfoxide solution was monitored by the acid number and epoxy number. The involvement of one of the tautomers of TTCA was postulated on the basis of the studied reaction between TTCA and 3 equiv of oxirane. It was also evidenced that the use of a catalyst was necessary for the reaction between TTCA and an excess of PO.

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Section: Introductionmentioning

confidence: 99%

“…The presence of HCl in the reaction mixture is due to the substitution of a chlorine atom in ECH [in reaction (2)] or in a chlorohydroxypropyl derivative [reaction (3)] 2 by the sulfur atom of the thiol group:…”

Section: Introductionmentioning

confidence: 99%

Reactions of trithiocyanuric acid with oxiranes. IV. Analysis of the initial stages of the synthesis of polyetherols

Chmiel-Szukiewicz

Lubczak

2006

J of Applied Polymer Sci

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“…Polyetherols of such properties can be obtained from the reactions of TTCA with an excess of epichlorohydrin (ECH) 2. These reactions should be conducted without a solvent or catalyst (unlike reactions with EO and PO); otherwise, crosslinking of the products takes place.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermally stable red electroluminescent hybrid polymers derived from functionalized silsesquioxane and 4,7‐bis(3‐ethylhexyl‐2‐thienyl)‐2,1,3‐benzothiadiazole

Xiao

Tan

et al. 2009

J. Polym. Sci. A Polym. Chem.

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Hyperbranched organic–inorganic hybrid conjugated polymers P1 and P2 were prepared via FeCl3‐oxiditive polymerization of 4,7‐bis(3‐ethylhexyl‐2‐thienyl)‐2,1,3‐benzothiadiazole (A) and octa(3‐ethylhexyl‐2‐thienyl‐phenyl)polyhedral oligomeric silsesquioxane (POSS) (B) at different POSS concentrations. Compared to linear polymer PM derived from A, P1, and P2 exhibit much higher PL quantum efficiency (ϕPL‐f) in condensed state with improved thermal stability. ϕPL‐f of P1 and P2 increased by 80% and 400%, and the thermal degradation temperatures of P1 and P2 are increased by 35 °C and 46 °C, respectively. Light‐emitting diodes were fabricated using P1, P2, and PM. While the electroluminescent spectra of both P1 and PM show λmax at 660 nm, P1 exhibits a much narrower EL spectrum and higher electroluminescence (∼500%) compared with PM at a same voltage and film thickness. The maximum current efficiency of P1 is more than seven times of that of PM. The turn‐on voltages of the LEDs are in the order of P2 > PM > P1. LED prepared by blending P1 with MEH‐PPV shows a maximum luminescence of 2.6 × 103 cd/m2 and a current efficiency of 1.40 cd/A, which are more than twice (1.1 × 103 cd/m2) and five times (0.27 cd/A) of LED of PM/MEH‐PPV blend, respectively. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5661–5670, 2009

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“…High conversions were obtained with homogeneous catalysts such as tertiary amines and quaternary ammonium salts, but in these cases high amounts of by-products resulted [4,5]. The highest yields and selectivity were obtained when chromium salts of involved acids were used in esterification reaction [6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Esterification of palmitic acid with epichlorohydrin on anion exchange resin catalyst

et al. 2007

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Abstract:The esterification reaction of palmitic acid with epichlorohydrin catalyzed by an anionic macroporous resin was studied. Purolite A-500 resin proved to be a very effective catalyst in the synthesis of 3-chloro-2-hydroxypropyl palmitate. The effects of certain parameters such as speed of agitation, catalyst particle size, catalyst loading, temperature, initial molar ratio between reactants on the rate of reaction were studied. It was found that the overall rate is intrinsically kinetically controlled. The structure of synthesized ester was confirmed by FTIR and 1 H NMR analyses.

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Reactions of trithiocyanuric acid with oxiranes. III. Reactions with epichlorohydrin

Cited by 3 publications

References 12 publications

Reactions of trithiocyanuric acid with oxiranes. IV. Analysis of the initial stages of the synthesis of polyetherols

Reactions of trithiocyanuric acid with oxiranes. IV. Analysis of the initial stages of the synthesis of polyetherols

Thermally stable red electroluminescent hybrid polymers derived from functionalized silsesquioxane and 4,7‐bis(3‐ethylhexyl‐2‐thienyl)‐2,1,3‐benzothiadiazole

Esterification of palmitic acid with epichlorohydrin on anion exchange resin catalyst

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