Poly Ethylene Glycol Co Propylene Glycol
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1. Estudo do efeito da adição de poli(glicol etilênico-b-glicol propilênico) na formação de dispersões aquosas poliuretânicas à base de poli(glicol propilênico) / Study of the effect of the copolymer poly(ethylene glycol-co-propylene glycol) addition on the polyurethane based poly(propylene glycol) aqueous dispersions formation
Non-polluting and poly(urethane-urea) aqueous dispersions based on poly(propylene glycol) (PPG) and block copolymers of poly(ethylene glycol-b-propylene glycol) (EG-b-PG) containing 7% of ethylene glycol repeating units, were produced in an innovative way. The poly(urethane-urea)s were prepared, in two steps, by the prepolymer method. In the first step, anio
Publicado em: 2007