m-PEG3-acid chloride，m-PEG3-Propanoyl chloride

THP-PEG12

m-PEG4-NHS ester

m-PEG5-2-methylacrylate

m-PEG10-Tos

m-PEG9-CH2COOH

m-PEG4-Mal，m-PEG4-amino-Mal

m-PEG5-NHS ester

m-PEG9-NHS ester

m-PEG5-azide

PEG18，HO-PEG17-OH

m-PEG9-acid，甲氧基-九聚乙二醇-丙酸

m-PEG6-CH2COOH

3-(m-PEG8-ethoxycarbonyl)propanoic-NHS ester

m-PEG17-NHS ester

m-PEG4-CH2-aldehyde

Hydroxy-PEG5-methyl ester，Hydroxy-PEG5-C2-methyl ester

Hydroxy-PEG4-nitrile，Hydroxy-PEG4-C2-nitrile

C11-PEG9-alcohol

m-PEG37-NHS ester