Journal ArticleDOI
Use of rheology, dielectric analysis and differential scanning calorimetry for gel time determination of a thermoset
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TLDR
In this article, the authors compared the results obtained by rheometry and dielectric analysis to those obtained using the Flory equation and found a reasonable agreement between the two techniques that lead to gel conversion values very close to the ones obtained using DEA.About:
This article is published in Polymer.The article was published on 2005-07-25. It has received 54 citations till now. The article focuses on the topics: Rheometry.read more
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A Critical Overview of Sensors for Monitoring Polymerizations
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Study on formation of gels formed by polymer and zirconium acetate
TL;DR: In this paper, a gel system used in the preparation of dispersed particle gel for water shutoff treatments, which is composed of polyacrylamides and zirconium acetate, was investigated.
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Thermal polymerization of benzoxazine monomers followed by GPC, FTIR and DETA
TL;DR: In this paper, the glass transition temperatures of polybenzoxazine resins were given by dynamic mechanical analysis (DMA) carried out for the first time in a material pocket.
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Time-resolved rheology as a tool to monitor the progress of polymer degradation in the melt state – Part I: Thermal and thermo-oxidative degradation of polyamide 11
Giovanni Filippone,Sabrina Carroccio,Raniero Mendichi,Lucia Gioiella,N. Tz. Dintcheva,Cristian Gambarotti +5 more
TL;DR: In this paper, the authors studied the thermal and thermo-oxidative degradation of polyamide 11 (PA11) in the melt state by resorting to time-resolved mechanical spectroscopy.
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In situ analysis of the relationship between cure kinetics and the mechanical modulus of an epoxy resin
TL;DR: In this article, the authors investigated the cure kinetics of epoxy cured with an amine hardener using a combination of light scattering techniques, where concurrent Raman and Brillouin scattering were used to monitor the formation of epoxide networks over time in terms of both the structural connectivity of the network and the evolution of chemical bonding configurations.
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Can the gel point of a cross-linking polymer be detected by the G′ – G″ crossover?
TL;DR: In this article, it was shown that there is only one class of network polymers for which the gel point coincides with the crossover, and the crossover cannot be used for detecting GP.
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Changes in molecular dynamics during bulk polymerization of an epoxide-amine system as studied by dielectric relaxation spectroscopy
TL;DR: In this paper, the dielectric properties of the diglycidyl ether of Bisphenol A with 4,4‘-diaminodicyclohexylmethane in the temperature range 290−353 K were studied.
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Relaxations in thermosets. 7. Dielectric effects during the curing and postcuring of an epoxide by mixed amines
M. B. M. Mangion,G. P. Johari +1 more
TL;DR: In this article, the dielectric permittivity and loss during the curing of diglycidyl ether of Bisphenol A with a 0.3:0.7 (mole:mole) mixture of diaminodiphenylmethane and diaminodeiphenol sulfone have been measured from their sol to gel to glass formation regions and the effects of physical aging on their sub-T g relaxations investigated.