Chinese Journal of Applied Chemistry

Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (5): 77-79.

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WATER-SOLUBLE AND AMPHIPHILIC POLYMERS 13. SYNTHESIS OF LOW MOLECULAR WEIGHT POLY(ACRYLIC ACID) AND ITS SODIUM SALT

Xu Guanfan1, Gao Lin1, Fang Tianru1, Wang Wenren2, Zheng Yiji2   

  1. 1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022;
    2. Department of Applied Chemistry, Jilin University of Technology, Changchun
  • Received:1991-06-28 Revised:1991-09-16 Published:1992-10-10 Online:1992-10-10

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Abstract: Poly (acrylic acid) (PAA) and its sodium salt of sow molecular weight were synthe-sized by using some redox initiator systems in which (NH4)2S2O8 was a main component,It was found that in acid solutions the resulted polymers were not crosslinked when FeSO4,CuSO4,or Na2S2O3 was present, In neutral solutions the (NH4)2S2O8-FeSO4-NaHSO3 ternary redox system was proved to be preferential for synthesizing Iow molecular weight PAA and conveniently controlling its molecular weight.

Key words: low molecular weight PAA, ammonium persulphate, ternary redox initiator system

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