Useful intermediates from industrial pet waste

被引：0
|
作者：
Vitkauskiene, I. [1 ]
Makuska, R. [1 ]
机构：
[1] Vilnius Univ, Dept Polymer Chem, LT-03225 Vilnius, Lithuania
来源：
PROCEEDINGS OF BALTIC POLYMER SYMPOSIUM 2007 | 2007年
关键词：
industrial PET waste; glycolysis; aromatic polyester polyols; recycling;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Industrial PET waste was recycled by glycolysis both using ethylene glycol to obtain bis(hydroxyethyl) tereplithalate (BHET) and diethylene glycol in the absence or presence of glycerine and adipic acid to obtain aromatic polyester polyols (APP). High yield (ca 82%) of high quality BHET was obtained under 3 h reflux at 190 degrees C. APP with hydroxyl number in the range 290 to 430 mg KOH/g and viscosity in the range 3000 to 38000 mPa.s were prepared. APP synthesized in the presence of functional additives were amorphous, more viscous and much more stable.
引用
收藏
页码：253 / 257
页数：5
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