Azide-PEG-Silane (N3-PEG-Silane), MW 5K is a living PEG polymer that reacts CuAAC with terminal alkynes or with cyclooctynes (DBCO/BCN) via SPAAC to form covalent triazole linkages. Silanes are surface modifying groups that react with hydroxyl groups on the surface of glass, nanoparticles, etc.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.