Interpolymeric condensation reactions

This grafting reaction was extrapolated to continuous-extruding systems but it was necessary to increase residence-time and mixing efficiency in order to obtain the optimal level of grafting (24). This study confirmed that interpolymeric condensation reactions are effective in the melt, but final reactivity is a function of composition and reciprocal miscibility of the two polymeric species. Further studies on crosslinking reactions in compatible reactive systems (31) have confirmed that diffusion plays an important role but surprisingly, the introduction of a tertiary amine, acting as catalyst, produces a multiplication of the rate constant by a factor of 100. 

Lamblh, M., Druz, J., and Satyanarayana, N. (1988) Crosslinking reactions in the molten state interpolymeric condensation reactions, Makromol. Chem., 189, 2703-2717. 

Figure 8 Reaction scheme of interpolymeric condensation between MA 6 and PP-g AM.

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