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Park, Lee Soon
School of Materials Science and Engineering
Research Interests
  • Flexible OLED new materials, process and fabrication
  • Touch Screen Panel(TSP) new materials and process new materials and process
  • Nano-materials synthesis and application (Ag nano-wire and metal mesh electrode)

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Synthesis and Thermal-Properties of Random-Copoly(P-Phenylene/Biphenylene Sulfide)S

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Title
Synthesis and Thermal-Properties of Random-Copoly(P-Phenylene/Biphenylene Sulfide)S
Author
Park, Lee SoonLee, Soo ChangNam, Je Ill
Keywords
Copoly(p-phenylene/biphenylene sulfide); Poly(arylene sulfide); Poly(p-phenylene sulfide)
Issue Date
1996-04
Publisher
ELSEVIER SCI LTD
Citation
POLYMER, v.37, no.8, pp.1339 - 1343
Abstract
Copoly(p-phenylene/biphenylene sulfide)s (PPBS) were synthesized from sodium sulfide and p-dichlorobenzene (DCB)/4,4’-dibromobiphenyl (DBB) comonomers in N-methyl-2-pyrrolidinone (NMP) solvent under high temperature (270 degrees C) and pressure. The copolymer composition and molecular weight of PPBS were determined by elemental(C,H,S) analysis and high temperature (210 degrees C) g.p.c, with 1-chloronaphthalene as eluent, respectively. The reactivity of DBB monomer was found to be higher than that of DCB toward the thiolate anion from the copolymer composition analysis. The molecular weight of PPBS copolymer showed maximum value (M(w) = 23.9-24.1 x 10(3)) at DCB/DBB feed ratio of 70/30-60/40 mol%. The T(g)s of copolymer were in good agreement with Fox’s equation. The PPBS samples exhibited T(m)s over all copolymer compositions by d.s.c. measurement. The eutectic point appeared to be at about 30 mol% of DBB repeat unit in the copolymer.
URI
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DOI
10.1016/0032-3861(96)81130-X
ISSN
0032-3861
Appears in Collections:
MSE_Journal Papers
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