Epoxy polymers curing process

Bashorov, M. T. Kozlov, G. V Mikitaev, A. K. The nanodimensional effects in epoxy polymers curing process. Chemical Technology, 2010,11 (2), 83-87. 

Proceeding from the considered above importance of steric factor p, the authors of paper [64] performed the study of change character of the indicated parameter value in epoxy polymers curing process on the system EPS-4/DDM example. 

Everything said above related to a full extent to polymers synthesis processes of various types - in these processes by self-organization way fractal objects (macromolecular coils, microgels) are formed, for which temperature, synthesis (curing) duration and so on are external influence. The authors of paper [72] studied the indicated factors influence on epoxy polymers curing process within the frameworks of synergetics. 

Polymer mechanical properties are one from the most important ones, since even for polymers of different special-purpose function a definite level of these properties always requires [20]. Besides, in Ref [48] it has been shown, that in epoxy polymers curing process formation of chemical network with its nodes different density results to final polymer molecular characteristics change, namely, characteristic ratio C, which is a polymer chain statistical flexibility indicator [23]. If such effect actually exists, then it should be reflected in the value of cross-linked epoxy polymers deformation-strength characteristics. Therefore, the authors of Ref [49] offered limiting properties (properties at fracture) prediction techniques, based on a methods of fractal analysis and cluster model of polymers amorphous state structure in reference to series of sulfur-containing epoxy polymers [50]. 

In Fig. 7.9, the comparison of values 6p calculated according to the Eq. (7.11) and obtained experimentally, is adduced. Now the good coirformity of theory and experiment is observed, both quantitative and qualitative. This confirms postulate that molecular characteristics change in epoxy polymers curing process actually occurs and, if this factor is not taken into account, the Ejprediction can give incorrect results. 

The Fractal Models of Epoxy Polymers Curing Process... 

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