合成技术及应用
閤成技術及應用
합성기술급응용
SYNTHETIC TECHNOLOGY AND APPLICATION
2014年
3期
1-5
,共5页
生物 EG%聚对苯二甲酸乙二醇酯%合成
生物 EG%聚對苯二甲痠乙二醇酯%閤成
생물 EG%취대분이갑산을이순지%합성
bio-ethylene glycol%polyethylene terephthalate%synthesis
利用生物基 EG合成聚对苯二甲酸乙二醇酯，并与石油基 EG进行了对比。结果表明，生物基 EG 无 DEG、TEG等高沸点微量组分，220 nm紫外透过率略低；用生物基 EG合成聚酯时，酯化出水速率和缩聚速率略快；生物基 EG合成聚酯的端羧基和熔融结晶温度较低，流变性能与石油基 EG合成聚酯相当。
利用生物基 EG閤成聚對苯二甲痠乙二醇酯，併與石油基 EG進行瞭對比。結果錶明，生物基 EG 無 DEG、TEG等高沸點微量組分，220 nm紫外透過率略低；用生物基 EG閤成聚酯時，酯化齣水速率和縮聚速率略快；生物基 EG閤成聚酯的耑羧基和鎔融結晶溫度較低，流變性能與石油基 EG閤成聚酯相噹。
이용생물기 EG합성취대분이갑산을이순지，병여석유기 EG진행료대비。결과표명，생물기 EG 무 DEG、TEG등고비점미량조분，220 nm자외투과솔략저；용생물기 EG합성취지시，지화출수속솔화축취속솔략쾌；생물기 EG합성취지적단최기화용융결정온도교저，류변성능여석유기 EG합성취지상당。
Polyethylene terephthalate (PET)was synthesized with bio- ethylene glycol (EG)an d oil based-EG respectively.Compared with oil based- EG ,bio-EG had less high-boiling micro component,and ultraviolet transmittance of bio-EG was just a little less than that of oil based- EG at wavelength 220nm.Using bio-EG as raw material during the synthesis of PET,the esterification and condensation rates were slightly faster The carboxyl end group and melting crystallization temperature of PET which was made from bio-EG were less than that of oil based-EG,however their rheological behaviors were confirmed to be of equivalence.
