OLIGOMERIZATION OF POLY(L-LACTIC ACID) BY HIGH-PRESSURE STEAM TREATMENT FOR FEEDSTOCK RECYCLING

摘要：

High-pressure steam hydrolysis of a poly(L-lactic acid) (PLLA) / poly(bisphenol A carbonate) (PC) (50:50 wt/wt) immiscible blend was investigated as a pre-treatment process before feedstock recycling of the PLLA component, resulting in the selective oligomerization of the PLLA component. After the pre-treatment by steam, the PLLA component was preferentially hydrolyzed in a manner of autocatalytic random degradation, whereas the PC component showed no change in molecular weight. This characteristic hydrolysis behavior of the blend will facilitate the crushing of moldings and subsequent feedstock recycling of PLLA.

作者: Yan Wang Takayuki Tsukegi Yoshihito Shirai Haruo Nishida

作者单位: Eco-Town Collaborative R&D Center for the Environment and Recycling, Kyushu Institute of Technology, Hibikino 2-4, Wakamatsu-ku, Kitakyushu,Fukuoka 808-0196,Japan

会议类型: 国际会议

会议名称: The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials(ISFR2009)(第五届高分子材料回收国际研讨会)

会议地点: 成都

会议语种:英文

页码: 205-209

在线出版日期: 2009-10-11（万方平台首次上网日期，不代表论文的发表时间）