TY - GEN
T1 - Impurity ions as probe of the diffusion process during epoxy-amine cure
AU - Deng, Yong
AU - Martin, George C.
PY - 1992
Y1 - 1992
N2 - During the curing of a thermosetting resin, the polymer chain lengths increase, the viscosity changes and the sample becomes completely insoluble at high conversions. The determination of the molecular self-diffusion coefficients presents a challenging problem, though it has been studied with the free-volume theory. the Adam-Gibbs theory of cooperative rearrangement, and the pulsed-gradient spin-echo NMR method. To study the diffusion-controlled curing kinetics in order to optimize and control the processing conditions of thermosetting systems and the properties of final products, a convenient method for estimating the cure-dependent diffusion coefficient is very important.
AB - During the curing of a thermosetting resin, the polymer chain lengths increase, the viscosity changes and the sample becomes completely insoluble at high conversions. The determination of the molecular self-diffusion coefficients presents a challenging problem, though it has been studied with the free-volume theory. the Adam-Gibbs theory of cooperative rearrangement, and the pulsed-gradient spin-echo NMR method. To study the diffusion-controlled curing kinetics in order to optimize and control the processing conditions of thermosetting systems and the properties of final products, a convenient method for estimating the cure-dependent diffusion coefficient is very important.
UR - http://www.scopus.com/inward/record.url?scp=0026979372&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026979372&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0026979372
SN - 0841222169
T3 - Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
SP - 495
EP - 496
BT - Polymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
PB - Publ by ACS
T2 - Proceedings of the American Chemical Society Division of Polymeric Materials - Science and Engineering
Y2 - 23 August 1992 through 27 August 1992
ER -