PBCL-PEG, MW x 5K, n 5K is an amphiphilic block copolymer composed of poly(α-benzyl carboxylate-ε-caprolactone) (PBCL) and polyethylene glycol (PEG). This grade combines approximately 5K PBCL with 5K PEG, providing a balanced hydrophobic-hydrophilic architecture for polymer self-assembly, drug encapsulation, and biomaterial applications.
Key Features and Benefits
- Amphiphilic Block Copolymer: Combines hydrophobic PBCL with hydrophilic PEG for polymer assembly and drug delivery.
- PBCL MW 5K: Provides a hydrophobic polyester block for core formation and incorporation of hydrophobic compounds.
- PEG MW 5K: Provides a substantial hydrophilic segment specifically for aqueous compatibility and steric stabilization.
- Balanced Block Ratio: Equal PBCL and PEG molecular weights provide balanced hydrophobic and hydrophilic character for amphiphilic assembly.
- Benzyl-Protected Carboxyl Groups: PBCL contains benzyl-protected carboxyl functionality that can support further polymer modification after appropriate deprotection.
- Functional Polymer Platform: Combines a functionalizable polyester block with hydrophilic PEG for drug delivery and biomaterial research.
Applications
- Nanoparticle Formulation: Supports preparation of PBCL-based polymeric nanoparticles and other nanoscale delivery systems.
- Micelle Formation: Supports core-shell assemblies with a hydrophobic PBCL core and hydrophilic PEG corona.
- Drug Delivery: Supports polymeric carriers for hydrophobic compounds and controlled-delivery research.
- Controlled Release: Supports polymer systems designed for sustained or controlled release.
- Polymer Functionalization: Provides benzyl-protected carboxyl groups that can support downstream modification following deprotection.
- Biomaterial Research: Supports development of functional PEGylated materials and polymer-based delivery platforms.
Storage and Handling
- Storage: Store at –20 °C in a tightly sealed container under dry conditions.
- Handling: Protect from moisture and excessive heat. Allow the material to equilibrate to room temperature before opening to minimize moisture condensation.
PBCL-PEG, MW x 5K, n 5K combines balanced PBCL and PEG blocks for amphiphilic polymer self-assembly and specifically supports nanoparticle formulation, micelle formation, hydrophobic drug delivery, controlled release, polymer functionalization, and biomaterial research.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.