中文名稱：聚DL-丙交酯，聚DL-乳酸，DL-聚乳酸，外消旋聚乳酸         

英文名稱：Poly(DL-lactide)，Poly（DL-lactic acid），DL-polylactide                     

化學(xué)式：(C₆H₈O₄)_n                         

 CAS登錄號：26023-30-3

應(yīng)用說明：聚DL-丙交酯（PDLLA）是一種生物可吸收降解材料�？捎糜卺t(yī)學(xué)領(lǐng)域，如一次性輸液用具、免拆型手術(shù)縫合線；藥物控釋、緩釋包裝劑；組織工程支架、骨固定及骨修復(fù)材料、注射用微球、埋植劑及支撐彈性體等材料.

項目                                                               質(zhì)量指標(biāo)

外觀                                                               白色粉末或顆粒

粘均分子量                                                     0.6-100萬

特性粘度                                                        0.3-11dL/g

旋光度（氯仿）                                     -10°—+10°

玻璃化溫度                                                     45℃—55℃

熔點                                                              無定形

殘留單體                                                       ＜1%

殘留溶劑                                                       ＜0.5%

重金屬                                                          ＜10 ppm

錫（催化劑）                                                ＜200 ppm

密度：                                                          1.2-1.3 g/cm3

硫酸鹽灰分                                                   ＜0.1%