Journal ArticleDOI
Prepolymers with propargylic terminal residues—i. simulation of reaction mechanisms and kinetics on monofunctional models
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TLDR
In this article, a series of monofunctional propargylic compounds were investigated using 1 H and 13 C nuclear magnetic resonance, high performance liquid chromatography, Fourier transform infrared spectroscopy, and thermal analysis in the temperature range of 50-350°C.About:
This article is published in European Polymer Journal.The article was published on 1997-07-01. It has received 31 citations till now. The article focuses on the topics: Polymerization & Claisen rearrangement.read more
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Advances in addition-cure phenolic resins
TL;DR: In this article, the chemistry of addition-cure phenolic resins and the different strategies involved in their molecular design are discussed, and the thermal, physical and mechanical properties are discussed and the structure-property correlations examined.
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Bis propargyl ether resins: synthesis and structure–thermal property correlations
TL;DR: In this article, the cure temperature and activation energy for the reaction increased in the order BPA, and the presence of electron-withdrawing group did not favour the cyclisation reaction leading to formation of chromene, which precedes the polymerisation.
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Mechanistic and kinetic aspects of the curing of phthalonitrile monomers in the presence of propargyl groups
TL;DR: In this paper, the influence of propargyl groups on the thermal polymerization of phthalonitrile groups has been examined through reaction of a blend of a bisphthalonitriles viz. 2,2-bis(4-proparyloxy phenyl)propane and a bispropargyl ether viz. BPhPR, and the possibilities for co-reaction of the two moieties and catalytic nature of the cure reaction prevailing in their blends were indicated by multiple exotherms in differential scanning calorimetry and dynamic rheological experiments.
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Addition-cure phenolic resins based on propargyl ether functional novolacs: synthesis, curing and properties
TL;DR: In this paper, the Williamson reaction of a novolac with propargyl bromide was used to synthesize phenolic resins, bearing varying extents of prop argyl ether groups (PN resins).
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Structural aspects of high temperature thermosets – Bismaleimide/propargyl terminated resin system-polymerization and degradation studies
TL;DR: In this article, a bispropargyl ether of bisphenol-A (BPEBPA), 4,4′-bismaleimido diphenyl ether (BMIE), and a blend consisting of 60% of BPEBP and 40% of BMIE are prepared.
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Curing reactions in acetylene terminated resins—I. Uncatalyzed cure of arylpropargyl ether terminated monomers
TL;DR: In this paper, arylpropargyl ether terminated monomers have been synthesized, (pHCCCH2OC6H4)2CMe2 (I) and the analogous model monomer pHC(CCH 2OC 6H4CME2Ph (II) having a single arylpargyl group.
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Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol)- a remarkable substituent and solvent effect
TL;DR: The Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol) -200 at 200°C affords products in good yields.
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Steric and Electronic Factors Which Effect the Thermal Cyclization of Meta-Substituted Aryl Propargyl Ethers. Synthesis of 5- and 7-Substituted 3-Chromenes
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Thermal polymerization of arylacetylenes: spectroscopic and thermal studies:
TL;DR: In this article, the reaction mechanisms and kinetics of endcapped ethynyl polyethers were studied in the temperature range 150-220C. The results obtained by '3C and 'H NMR, FrTIR, HPLC and DSC indicate reactivity differences and competing reactions.