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Citation: Dong Lisong, Zheng Guodong, Feng Zhiliu. AN INVESTIGATION ON THE TRANSITIONS OF OLIGO-POLYSULFONES BY DSC[J]. Chinese Journal of Applied Chemistry, ;1987, 4(1): 53-56. shu

AN INVESTIGATION ON THE TRANSITIONS OF OLIGO-POLYSULFONES BY DSC

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Corresponding author: Dong Lisong,
Received Date: 19 December 1985
Available Online: 27 March 1986

The transitions of bisphenol A and phenolphthalein oligo-polysulfones were investigated by DSC. It is found that for both the oligomers, after proper heat-treatment, two more transitions, lower and higher than their T_g,appeared on their DSC curves. It might be reasonable to suggest that these two transitions be due to the disordering of loc 1 short and long range order of molecular arrangements respectively. Equations for linear relationship between T_g and Mn for both the oligomers are given in the paper.
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