聚乙二醇-纤维素接枝物的合成与表征  

SYNTHESIS AND CHARACTERIZATION OF POLYETHYLENE GLYCOL AND CELLULOSE GRAFTED COPOLYMER

作　　者：吕社辉[1] 郭元强[1] 陈鸣才[1] 何涛[1] 

机构地区：[1]中国科学院广州化学所,1122信箱广东广州510650

出　　处：《高分子材料科学与工程》2004年第4期62-65,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助课题(20174046);广东省自然科学基金资助课题(010530)

摘　　要：应用化学偶联的方法,将聚乙二醇(PEG)分子接枝到纤维素分子链上。运用傅立叶转换红外光谱(FT-IR)、差示扫描量热仪(DSC)、广角X射线衍射仪(WAXD)对聚乙二醇-纤维素接枝物进行表征。结果表明,PEG通过化学键偶联在纤维素分子的侧链上,形成接枝共聚物,PEG-CELL接枝物为固-固相变材料。PEG (Polyethylene glycol)-CELL (cellulose) grafted copolymer was prepared by grafting PEG to CELL chemically. PEG-CELL grafted copolymer was investigated by means of Fourier transition infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and wide angle X-ray diffraction (WAXD). It shows that PEG is grafted on the chain of CELL by tolyene 2,4-diisocyanate (TDI). The enthalpy and crystallizability of PEG-CELL grafted copolymer decrease. PEG -CELL grafted copolymer is solid-solid change material (PCM).

关 键 词：聚乙二醇 纤维素 合成 表征 化学偶联 化学键 接枝共聚物 固-固相变材料 

分 类 号：TB34[一般工业技术—材料科学与工程] TQ316.343[化学工程—高聚物工业]