YANG Shi-kun, YANG Wei, CHEN Yu-jun. STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET[J]. Acta Polymerica Sinica, 1987,(2):88-92.
YANG Shi-kun, YANG Wei, CHEN Yu-jun. STUDY OF CRYSTALLINITY OF POLY(ETHYLENE TEREPHTHALATE)——Ⅴ. Effect of Catalyst in the Esterexchange Synthesis of PET[J]. Acta Polymerica Sinica, 1987,(2):88-92.DOI:
We have synthesized poly (ethylene terephthalate) (PET)
with two series of different catalysts in the process of esterexchange reaction.The catalyst effects the crystal behavior of PET was studied by DSC. The crystal behavior of PET by different catalysts is characterized by supercooled degree
superheated degree
peak of melt crystallization ect. It has been shown that the electronegativity (or lg β1) of metallic element involved in catalysts not only influence the cause of activity of catalyst
but also affect the crystal of PET in some way. It is probable the rate of forming crystal embryos is speeded up in presence of cetain metallic ion of catalysts.