Citation: PIAO Mingjun, WAN Meixiang, LU Fengcai. EFFECTS OF CHAIN STRUCTURE OF POLYPYRROLONES ON THE ELECTRICAL PROPERTIES OF PYROLYZED POLYPYRROLONES*[J]. Chinese Journal of Polymer Science, ;1997, 15(1): 74-83. shu

EFFECTS OF CHAIN STRUCTURE OF POLYPYRROLONES ON THE ELECTRICAL PROPERTIES OF PYROLYZED POLYPYRROLONES*

Received Date: 17 January 1996

Three kinds of polypyrrolones (PMDA-DAB, PMDA-TADPE and DEDA-DAB) werepyrolyzed at high temperature in order to study the effect of the chain structure of polypyrro-lones on the electrical properties of the pyrolyzed polymers. Results show that the num-ber of fusing rings in the main chain of polymers has a little effect on the pyrolysis pro-cess, whereas, the ether bond in the main chain plays an important role during pyrolysis.Structure characterizations by elemental analyis, XPS spectra, X-ray diffraction and SEM images indicate that because the ether bond is easy to break,it is difficult to form large area planar network.This hampers the formation of the graphite-like structure in the polypyrrolones containing ether bond even after being pyrolyzed at 1200℃.
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