Journal of Shanghai Jiaotong University (Science)

, Volume 15, Issue 1, pp 114–118

Preparation and characterization of polysulfonamide statistical copolymers from three aromatic diamines

  • Li Liu (刘 丽)
  • Wei-tao Wang (王维涛)
  • Chang-fa Xiao (肖长发)


Various polysulfonamide (PSA) statistical copolymers were synthesized by polycondensation of three aromatic diamines and terephthaloyl chloride. The inherent viscosities of the resulting PSA copolymers range from 1.54 to 1.66 dL/g. The precipitated PSA copolymers with feed content of p-phenylene diamine (PPD) being less than 50% (mole fraction) can be redissolved in N-methyl-2-pryrrolidone (NMP) or N,N-dimethylacetamide (DMAc) with lithium chloride of wLiCl = 0.02. All of the PSA copolymers exhibit enhanced tensile strength in comparison with PSA and still maintain excellent thermal stability in either air or nitrogen atmosphere

Key words

aromatic diamine terephthaloyl chloride (TPC) polysulfonamide (PSA) statistical copolymer polycondensation 

CLC number

O 63 


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  1. [1]
    Zhang L, Li Y B, Liu J Z. Research on heat resistance of polysulfonamide fibers [J]. Journal of Tianjin Polytechnic University, 2006, 25(6): 17–19 (in Chinese).Google Scholar
  2. [2]
    Zhang H P, Zhang J C, Chen J Y, et al. Effects of solar UV irradiation on the tensile properties and structure of PPTA fiber [J]. Polym Degradation and Stability, 2006, 91: 2761-2767.Google Scholar
  3. [3]
    Li X G, Huang M R. Advanced materials engineering of liquid crystalline polymers [M]. Shanghai: East China Normal University Press, 2000 (in Chinese).Google Scholar
  4. [4]
    Ruijter C D, Jager W F, Groenewold J, et al. Synthesis and characterization of rod-coil poly (amide-block-aramid) alternating block copolymers [J]. Macromolecules, 2006, 39(11): 3824–3829.CrossRefGoogle Scholar
  5. [5]
    Helgee B, Flodin P. Preparation and properties of block copolyamide fibers [J]. Polymer, 1992, 33(17): 3616–3620.CrossRefGoogle Scholar
  6. [6]
    Chiriac C, Stille J K. Polyaramides containing sulfone ether units [J]. Macromolecules, 1977, 10(3): 712–713.CrossRefGoogle Scholar
  7. [7]
    Idage S B, Idage B B, Shinde B M, et al. Polyamides containing arylene sulfone ether linkages [J]. Journal of Polymer Science. Part A: Polymer Chemistry, 1989, 27(2): 583–594.CrossRefGoogle Scholar
  8. [8]
    Christiaan D R, Eduardo M, Boerstoel H, et al. Orientational order and mechanical properties of poly (amide-block-aramid) alternating block copolymer films and fibers [J]. Polymer, 2006, 47(26): 8517–8526.CrossRefGoogle Scholar
  9. [9]
    Hong D Y, Lu Z X, Ma D J, et al. Synthesis and performance of lytropic liquid crystalline polymer poly (pphenylene terephthalamide) (PPTA) [J]. China Synthetic Resin and Plastics, 1994, 11(4): 9–16 (in Chinese).Google Scholar
  10. [10]
    Fan G, Zhao J, Zhang Y, et al. Grafting modification of Kevlar fiber using horseradish peroxidase [J]. Polym Bull, 2006, 56: 507–515.CrossRefGoogle Scholar
  11. [11]
    Chan W H, Suei Y L L, Ng C F, et al. Synthesis and characterization of random poly (amide-sulfonamide)s: 3 copolymers from two diamino monomers [J]. Polymer, 1995, 36(23): 4503–4508.CrossRefGoogle Scholar
  12. [12]
    Ding M X, He T B. New polyimide materials [M]. Beijing: Science Press, 1998 (in Chinese).Google Scholar
  13. [13]
    Haraguchi K, Kajiyama T, Takayanagi M. Effect of coagulation conditions on crystal modification of poly (p-phenylene terephthalamide) [J]. Journal of Applied Polymer Science, 1979, 23: 915–926.CrossRefGoogle Scholar
  14. [14]
    Rommel H, Forster G. Topology of the ternary phase system poly (p-phenylene terephthalamide)-sulfuric acid-water [J]. Macromolecules, 1994, 27(16): 4570–4576.CrossRefGoogle Scholar
  15. [15]
    Tadahiro F, Takashi F, Eiji S, et al. A novel process for the formation of poly (p-phenylene terephthalamide) film from liquid crystalline solutions [J]. Polymer Engineering and Science, 1989, 29(18): 1237–1240.CrossRefGoogle Scholar
  16. [16]
    Liu X Y, Yu W D. Evaluating the thermal stability of high performance fibers by TGA [J]. Journal of Applied Polymer Science, 2006, 99: 937–944.CrossRefGoogle Scholar

Copyright information

© Shanghai Jiaotong University and Springer Berlin Heidelberg 2010

Authors and Affiliations

  • Li Liu (刘 丽)
    • 1
    • 2
  • Wei-tao Wang (王维涛)
    • 1
  • Chang-fa Xiao (肖长发)
    • 2
  1. 1.School of Materials Science and EngineeringShanghai UniversityShanghaiChina
  2. 2.Key Laboratory of Hollow Fiber Membrane Materials and Membrane Processes, Ministry of EducationTianjin Polytechnic UniversityTianjinChina

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