PCL-PEG-Alkyne, MW x 5K, n 1K is an alkyne-functionalized amphiphilic block copolymer composed of poly(ε-caprolactone) (PCL) and polyethylene glycol (PEG). This grade combines approximately 5K PCL with 1K PEG, providing a strongly PCL-rich architecture for hydrophobic assembly and drug incorporation, while the terminal alkyne group enables click chemistry conjugation and surface functionalization.
Key Features and Benefits
- Amphiphilic Copolymer: Combines a dominant hydrophobic PCL block with a short hydrophilic PEG segment.
- PCL MW 5K: Provides a biodegradable hydrophobic segment specifically for core formation and incorporation of hydrophobic compounds.
- PEG MW 1K: Provides a short hydrophilic segment specifically for interfacial stabilization and surface functionality.
- PCL-Rich Architecture: The 5:1 PCL-to-PEG molecular weight ratio favors hydrophobic interactions and core-forming 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 polymeric carriers for hydrophobic compounds and targeted delivery 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 5K, n 1K combines a strongly PCL-rich amphiphilic architecture with terminal alkyne functionality and specifically supports click chemistry conjugation, nanoparticle functionalization, hydrophobic drug delivery, and biomaterial development.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.