Abstract
A discussion on the influence of grafted polar groups (succinic anhydride and succinil-fluorescein) in glass transition behaviour of atactic polypropylene is shown in this work, on the basis of the reaction conditions used to obtain the modified polymers, kind and amount of grafted groups, and the degradation processes which may take place. The Box-Wilson experimental design methodology for two independent variables (reactant concentration to obtain the modified polymer) has been used to follow variations in glass transition temperatures. The existence of undesired degradation processes is considered as independent of the grafting reactions, and the model predictions seem to agree with this latter.
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Collar, E.P., Marco, C., Laguna, O. et al. On the Changes in Glass Transition Temperatures of Atactic Polypropylenes Induced by Grafting of Polar Groups. Journal of Thermal Analysis and Calorimetry 58, 541–550 (1999). https://doi.org/10.1023/A:1010188024491
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DOI: https://doi.org/10.1023/A:1010188024491