Synthesis and Thermal Properties of PPS/PPSS Copolymer

PPS/PPSS 공중합체의 합성 및 열적 성질

  • Received : 1998.02.05
  • Accepted : 1998.04.01
  • Published : 1998.06.10


Poly(phenylene sulfide-co-phenylene sulfide sulfone), PPS/PPSS copolymers were synthesized from p-dichlobenzene(DCB), p-dibromobenzene(DBB), p-diiodobenzene(DIB), 4-chlorophenyl sulfone(CPS) and sodium sulfide as comonomers under high temperature and pressure utilizing N-methyl-2-pyrrolidinone(NMP) as solvent. The yield of PPS/PPSS copolymer shoed maximum at $190^{\circ}C$ with [DBB]/[CPS] and [DIB]/[CPS] comonomer pair, while [DCB]/[CPS] pair exhibited maximum yield at $230^{\circ}C$. The change of yield is in the order of I>Br>Cl as leaving groups were in accordance with nucleophilic aromatic substitution reaction mechanism suggested for the synthesis of PPS type polymers. The molecular weight of PPS/PPSS copolymer was the highest($M_w=8,330g/mol$) with [DBB]/[CPS] comonomers in which [CPS] was 10 mole%. The PPS/PPSS copolymer made with 10 mole% of [CPS] showed about $15^{\circ}C$ higher $T_g$ and $15^{\circ}C$ lower $T_m$ than those of PPS homopolymer, which may be useful from the processing and thermal property point of view. The PPS/PPSS copolymer with 30 mole% of CPS or above did not exhibit Tm. The PPS/PPSS copolymer obtained with comonomer feed ratio of [DBB]/[CPS] = 95/5 mole% under $240^{\circ}C$ showed even higher molecular weight($M_w=10,300g/mole$) than PPS homopolymer made under similar reaction condition, retaining high crystallinity and thermal stability.



  1. J. Org. Chem. v.13 A. D. maCallum
  2. Polym. Deg. & Stab v.38 M. Wejchan-Judek;B. Perkowska
  3. Macromolecules v.24 D. R. Fahey;C. E. Ash
  4. Ploymer(Korea) v.19 S. C. Lee;L. S. Park
  5. Polymer v.37 L. S. Park;S. C. Lee;J. I. Nam
  6. U. S. Patent, 3,354,129 J. T. Edmonds, Jr;H. W. Hill, Jr
  7. U. S. Patent, 3,919,177 R. W. Campbell
  8. U. S. Patent, 4,024,118 R. W. Campbell;H. D. Yelton
  9. Polymer(Korean) v.16 L. S. Park(et al.)
  10. J. Polym. Sci. v.58 R. W. Lenz;C. E. Handlovits;H. A. Smith
  11. Engineering Thermoplastics J. M. Margolis
  12. US Patent, 3,524,835 J. T. Edmonds, Jr;H. W. Hill, Jr
  13. Makromol. Chem v.184 W. Koch;W. Heitz
  14. U. S. Patent, 3,869,434 R. W. Campbell;L. E. Scoggins
  15. U. S. Patent, 4,038,259 R. W. Campbell;J. T. Edmonds, Jr.
  16. U. S. Patent, 3,714,620 R. G. Rohlfing
  17. U. S. Patent, 3,793,256 J. S. Scoggin
  18. Bull. Chem. Soc. Jpn v.63 M. M. Ito;M. Onda;s. Ona;H. Inoue
  19. U. S. Patent, 4,645,826 Y. Iizuka;T. Iwasaki;T. Katto;Z. Shiiki