请教两个高分子材料的名称? polypropylene terephthalate和polytrimethylene terephalate(ptt)指的是一种东西,后一种叫法更常见,通常简称ptt,几乎没见过称其为ppt的。 http:///pep/public/reports/phase_97/rp227/ the recent commercial availability of polymerization-grade 1,3-propanediol (pdo) allows commercialization of polypropylene terephthalate (commonly called polytrimethylene terephthalate, or ptt ).查看更多