Alkaline dechlorination of poly(vinyl chloride) in organic solvents under mild conditions

Autor: Tomoyuki Ichiki, Jie Chen, Toshifumi Tanimura, Makoto Yamaye, Takeshi Yamanobe, Tetsutaro Yoshinaga, Masahiko Ogata, Hiroshi Fujino, Taketoshi Kito
Rok vydání: 2004
Předmět:
Zdroj: Polymer Degradation and Stability. 86:541-547
ISSN: 0141-3910
DOI: 10.1016/j.polymdegradstab.2004.06.008
Popis: A mild alkaline hydrolysis of poly(vinyl chloride) (PVC) in an organic solvent was conducted with a satisfactory degree of dechlorination (DD). Under atmospheric pressure, a DD of 98–99% was accomplished in the hydrolysis with NaOH in dimethylsulfoxide at 80 °C for 1–3 h. The resulting hydrolysis product is poly(vinyl alcohol) with a very small chlorine content. Sodium chloride was the only by-product and no other harmful products such as dioxins were formed. Possible solvent recycling mainly depends on controlled use of water.
Databáze: OpenAIRE