PCL-PEG-Alkyne, MW x 2K, n 5K is an alkyne-functionalized amphiphilic block copolymer composed of poly(ε-caprolactone) (PCL) and polyethylene glycol (PEG). This grade combines approximately 2K PCL with 5K PEG, providing a strongly PEG-rich architecture for aqueous stabilization and polymer assembly, while the terminal alkyne group enables click chemistry conjugation and surface functionalization.
Key Features and Benefits
- Amphiphilic Copolymer: Combines hydrophobic PCL with hydrophilic PEG for polymer assembly and drug delivery.
- PCL MW 2K: Provides a biodegradable hydrophobic segment for core formation and incorporation of hydrophobic compounds.
- PEG MW 5K: Provides a dominant hydrophilic segment specifically for aqueous compatibility and steric stabilization.
- PEG-Rich Architecture: The 5:2 PEG-to-PCL molecular weight ratio favors hydrophilic surface character and stabilization of polymer assemblies.
- Alkyne Functionalization: Provides a terminal alkyne group for selective conjugation and further chemical modification.
- Click Chemistry: Alkyne functionality supports copper-catalyzed azide-alkyne cycloaddition (CuAAC) with azide-containing molecules to form stable triazole linkages.
Applications
- Click Chemistry Conjugation: Enables attachment of azide-containing peptides, proteins, dyes, ligands, and other functional molecules.
- Nanoparticle Functionalization: Supports surface modification of nanoparticles, micelles, and other polymer assemblies.
- Drug Delivery: Supports amphiphilic polymeric carriers specifically for drug delivery and targeting research.
- Ligand Conjugation: Enables covalent attachment of azide-functionalized targeting ligands through click chemistry.
- Biomaterial Research: Supports development of functionalized biodegradable polymers and chemically modified biomaterials.
Storage and Handling
- Storage: Store at –20 °C in a tightly sealed container under dry conditions.
- Handling: Protect from moisture and excessive heat. Use appropriate click chemistry conditions for conjugation with azide-functionalized molecules.
PCL-PEG-Alkyne, MW x 2K, n 5K combines a short PCL block with a dominant PEG segment and terminal alkyne functionality and specifically supports click chemistry conjugation, PEG-stabilized polymer assemblies, targeted drug delivery, and biomaterial development.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.