Hyperbranched Polymers as Novel Flame Retardant Material
A series of aromatic hyperbranched polyethers have been synthesized from cyanuric chloride and diols by using nucleophilic displacement polymerization technique. The synthesized sulfur containing polyether was blended with commercially available low density polyethylene (LDPE) and plasticized poly(vinyl chloride) separately to improve the flame retardant property of those linear polymers. The flame retardancy of blends at different dose levels of the hyperbranched polyether with those linear polymers was investigated by measurement of limiting oxygen index (LOI) value and thermogravimetric analysis. The LOI values and TG analysis of these blends indicated that the hyperbranched polyether act as flame retardant additive.
Lianxiang Ma, Chuangsheng Wang and Weimin Yang
J. Borah et al., "Hyperbranched Polymers as Novel Flame Retardant Material", Advanced Materials Research, Vols. 87-88, pp. 271-275, 2010