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asian hdpe-ethylene language: english 简体中文 english home about us products news join us feedback contact us products list propylene carbonate propylene glycol propylene glycol tech grade propylene glycol usp grade dipropylene glycol ethylene carbonate dimethyl carbonate diethyl carbonate contact us tel...
propylene monomer has three kind of stereospecific structure as the arrangement type of the methyl group during polymerization. these are isotatic pp, syndiotactic pp and atactic pp.. commercially most valuable structure is one of isotatic pp owing to the high crystilinity and good mechanical, thermal...