Get access

Flame-retardant and physical properties of poly(vinyl alcohol) chemically modified by diethyl chlorophosphate

Authors

  • Jian-Sheng Lin,

    1. Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China
    Search for more papers by this author
  • Li Chen,

    1. Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China
    Search for more papers by this author
  • Ya Liu,

    Corresponding author
    1. Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China
    • Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
    Search for more papers by this author
  • Yu-Zhong Wang

    Corresponding author
    1. Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, State Key Laboratory of Polymer Materials Engineering, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), Sichuan University, Chengdu 610064, China
    • Center for Degradable and Flame-Retardant Polymeric Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
    Search for more papers by this author

Abstract

Phosphorylated poly(vinyl alcohol) (P-PVA) was prepared via the modification of the pendent hydroxyl groups of poly(vinyl alcohol) (PVA) in the presence of diethyl chlorophosphate (DECP). Chemical structures of the P-PVA were characterized by attenuated total reflection-Fourier transform infrared, 1H NMR, and 31PNMR spectra. The formed P-PVA showed good flame retardance, improved thermal stability, enhanced hydrophilicity, decreased tensile strength, and increased elongation at break compared with PVA. The crystallinity of P-PVA was much lower than that of PVA, and it decreased with the increase of phosphorus content. The reasons for the obvious differences between the aforementioned properties of PVA and P-PVA were investigated and discussed. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

Ancillary