Characterization of cured polystyrylpyridine by model compounds

Hsu, Ming-Yi; Rosenberg, Mark L.; Parker, J. A.; Heimbuch, A. H.

doi:10.1002/app.1981.070260621

Cited by 13 publications

(1 citation statement)

References 5 publications

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“…The curing behavior of PSP has been exThis investigation deals with the synthesis and tensively investigated. The formation of fused arocharacterization of polyesters containing styrylmatic rings by a Diels-Alder reaction, 5 as well as pyridine units in the main chain. After curing, the addition of a methyl group of methylpyridine they afforded thermally stable crosslinked polyto the C|C bond of the styrylpyridine derivamers which could be used as matrix resins for tive, 6 has been reported.…”

Section: Introductionmentioning

confidence: 99%

Crosslinkable polyesters containing styrylpyridine segments

Spiliopoulos¹,

Mikroyannidis²

1997

J. Appl. Polym. Sci.

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Polyesters containing styrylpyridine segments were synthesized with the bisphenols 2,6-di[2-(2-hydroxy-1-naphthyl)vinyl]pyridine, 2-[2-(2-hydroxy-1-naphthyl)vinyl]-8-hydroxyquinoline, and 2-(4-hydroxystyryl)-8-hydroxyquinoline as starting materials. The polyesters were characterized by inherent viscosity measurements, Fourier transform infra-red, 1 H nuclear magnetic resonance, X-ray, differential thermal analysis, thermomechanical analysis, thermogravimetric analysis, and isothermal gravimetric analysis. The polymers were amorphous or microcrystalline and were soluble in hot, polar, aprotic solvents containing 5 wt % LiCl. They showed T g at 112-175ЊC and T m at 165-295ЊC. After heat curing, the polyesters yielded resins which were stable up to 367-335ЊC in N 2 and 347-329ЊC in air and afforded anaerobic char yields of 72-64% at 800ЊC.

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Section: Introductionmentioning

confidence: 99%

Crosslinkable polyesters containing styrylpyridine segments

Spiliopoulos¹,

Mikroyannidis²

1997

J. Appl. Polym. Sci.

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Polystyrylpyridine Resins and CompositesAdapted from Polystyrylpyridine Resins and Composites , First Edition.

Bloch

Maquart²

2012

Wiley Encyclopedia of Composites

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In this article, polystyrylpyridines (PSP resins) are presented. A discussion on the chemical aspects introduces these materials; then in the first part of the article, synthesis and processing of PSP resins are introduced. In particular, PSP prepolymers are obtained by heating nearly equimolecular mixtures of terephtaldialdehyde and sym‐collidine in the presence of an acidic catalyst. However, to improve the performance or processing conditions, several modifications have been brought to the standard collidine‐terephtaldialdehyde composition, and some examples of modified styrylpyridine resin are presented in the aricle. In the second part of the article, uses and applications as matrices for composites are discussed. In particular, some commercially available resin are introduced, and finally, a discussion on economic aspects and safety factors of their uses is reported.

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Synthesis, characterization, and curing of unsaturated polyamides derived from 2,6‐di(4‐carboxystyryl)pyridine and 2,6‐bis(4‐carboxybenzylidene) cyclohexanone

Mikroyannidis

1992

J of Applied Polymer Sci

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SYNOPSISTwo new series of heat-curable polyamides were prepared utilizing the unsaturated dicarboxylic acids 2,6-di (4-carboxystyry1)pyridine (DCSP ) and 2,6-bis (4-carboxybenzylidene)cyclohexanone (BCBC) as starting materials. They were prepared from the condensation of 4-carboxybenzaldehyde with a half molar amount of 2,6-dimethylpyridine or cyclohexanone, respectively. The dicarboxylic acids reacted with various aromatic diamines, utilizing triphenyl phosphite and pyridine as condensing agents, to yield polyamides. In addition, two model diamides were prepared by condensing the dicarboxylic acids with aniline. Characterization of starting materials, polyamides, and model compounds was accomplished by IR and 'H-NMR spectroscopy. The curing behavior of polyamides was investigated by DTA. Upon heat-curing, the unsaturated polyamides were crosslinked through their olefinic bonds to afford insoluble, heat-resistant resins. The thermal stability of the resins was evaluated by TGA and isothermal gravimetric analysis (IGA) . The cured resins were stable up to 310-322°C in N2 or air and afforded anaerobic char yield of 57-69% a t 800°C.

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Characterization of cured polystyrylpyridine by model compounds

Cited by 13 publications

References 5 publications

Crosslinkable polyesters containing styrylpyridine segments

Crosslinkable polyesters containing styrylpyridine segments

Polystyrylpyridine Resins and CompositesAdapted from Polystyrylpyridine Resins and Composites , First Edition.

Synthesis, characterization, and curing of unsaturated polyamides derived from 2,6‐di(4‐carboxystyryl)pyridine and 2,6‐bis(4‐carboxybenzylidene) cyclohexanone

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