PEG hydroxyl groups can easily participate in hydrogen bonding, and the electronegativity of oxygen adds a slight polarity to alcohols—Axispharm produces and supplies PEGylation reagents with hydroxyl groups for you. Among them, PEG polymer include linear methoxy PEG (mPEG), branched PEG derivatives, etc. We also provide you with high-purity PEG dendrimers, copolymers, peg linkers.