Citation: CHEN Ye, YANG Decai. EFFECT OF TACTICITY OF PMMA ON CRYSTALLINE STRUCTURE OF POLY VINYLIDENE FLUORIDE*[J]. Chinese Journal of Polymer Science, ;1994, 12(2): 122-125. shu

EFFECT OF TACTICITY OF PMMA ON CRYSTALLINE STRUCTURE OF POLY VINYLIDENE FLUORIDE*

CHEN Ye ,
YANG Decai

Received Date: 30 October 1992

Fourier transform infrared spectroscopy (FTIR) has been used to study the effect of tacticityof PMMA on β phase formation of poly vinylidene fluoride (PVF2) during quenching process.For pure PVF2, quenching at lower temperature results in the formation of β phase crystallites.The critical quenching temperature for β phase formation is about 30℃. Adding a given amountof PMMA (30%) results in the increase of the critical quenching temperature. For the blends ofPVF2 with atactic PMMA (a-PMMA), the critical quenching temperature is about 45℃,while for the blends with syndiotactic PMMA (s-PMMA),attains to about 70℃.
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