PEG是由乙二醇首尾相連聚合而形成的長鏈，通過改變乙二醇單元的數(shù)量即可調(diào)節(jié)PEG 連接子的長度，同時長鏈端末的羥基可以置換成特定的官能團，雙官能化的PEG連接子可以作為“橋梁”將兩端分子進行連接。PEG 具有良好的水溶性和低免疫原性，因此它在藥物劑型修飾、藥物遞送、生物化學實驗等領域都有著重要的應用價值。
Oxybis(ethane-2,1-diyl) bis(4-methylbenzenesulfonate)
tert-Butyl (2-(2-aminoethoxy)ethyl)carbamate
Boc-NH-PEG6-NH2
1-Bromo-2-(2-bromoethoxy)ethane
3,6,9,12,15,18,21,24,27-Nonaoxanonacosane-1,29-diol
2,5-Dioxopyrrolidin-1-yl 3-(2-((tert-butoxycarbonyl)amino)ethoxy)propanoate
2,5-Dioxopyrrolidin-1-yl 2,2-dimethyl-4-oxo-3,8,11,14,17-pentaoxa-5-azaicosan-20-oate
2-(2-(2-(Benzyloxy)ethoxy)ethoxy)ethan-1-amine
Oxybis(ethane-2,1-diyl) dimethanesulfonate
2-(2-(2-Aminoethoxy)ethoxy)ethanol
2,2'-Oxybis(ethan-1-ol)
1,2-Bis(2-aminoethoxy)ethane
tert-Butyl (14-amino-3,6,9,12-tetraoxatetradecyl)carbamate
1-(9H-Fluoren-9-yl)-3-oxo-2,7,10,13-tetraoxa-4-azapentadecan-15-oic acid
tert-Butyl (2-(2-(2-(2-bromoethoxy)ethoxy)ethoxy)ethyl)carbamate
tert-Butyl (23-amino-3,6,9,12,15,18,21-heptaoxatricosyl)carbamate
2,5-Dioxopyrrolidin-1-yl 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16-pentaoxa-4-azanonadecan-19-oate
1-(9H-Fluoren-9-yl)-3-oxo-2,7,10,13-tetraoxa-4-azahexadecan-16-oic acid
1-(9H-Fluoren-9-yl)-3-oxo-2,7,10,13,16-pentaoxa-4-azanonadecan-19-oic acid
1-(9H-Fluoren-9-yl)-3-oxo-2,7,10,13,16,19-hexaoxa-4-azadocosan-22-oic acid
2-(2-(2-(2-Chloroethoxy)ethoxy)ethoxy)ethanol
tert-Butyl (17-amino-3,6,9,12,15-pentaoxaheptadecyl)carbamate
3,6,9,12-Tetraoxatetradecane-1,14-diamine
3,6,9,12,15-Pentaoxaheptadecane-1,17-diamine
3-(2-(2-Aminoethoxy)ethoxy)propanoic acid
2-(2-(Benzyloxy)ethoxy)acetic acid
1-Amino-3,6,9,12,15,18-hexaoxahenicosan-21-oic acid
3,6,9,12,15,18,21,24,27,30-Decaoxadotriacontane-1,32-diamine
2-(2-Hydroxyethoxy)acetaldehyde
(Ethane-1,2-diylbis(oxy))bis(ethane-2,1-diyl) bis(4-methylbenzenesulfonate)
