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Laurolactam as a stabilizer against the thermo-oxidative degradation of poly(et...
Botelho, Gabriela; Gijsman, P.; Machado, A. V.; Queirós, ArleteIn this study we examined the influence of laurolactam on the thermo-oxidative degradation of a copolymer of poly(butylene terephthalate) and polybutylene glycol and of di(ethyleneglycol) dibenzoate, used as model compound. The degradation was followed by measurement of the oxygen uptake, FTIR and 1H-NMR spectroscopy and measurement of the intrinsic viscosity changes during degradation. A stabilizing effect of l...
Data: 2004
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Origem: RepositóriUM - Universidade do Minho
Enhancement of the thermo-oxidative degradability of polystyrene by chemical mo...
Botelho, Gabriela; Queirós, Arlete; Machado, A. V.; Frangiosa, Paulo; Ferreira, JoséA comparative study, conducted into the thermooxidative degradation of polystyrene (PS) and PS modified by insertion of CH2(C=O)CH2CH2 units (MPS), showed that the degradability of PS was enhanced.
Data: 2004
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Origem: RepositóriUM - Universidade do Minho
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