PCL-MPEG

Price range: $260.00 through $960.00

PCL-mPEG (Methoxy Polyethylene Glycol-b-Polycaprolactone) is a tin-free, biodegradable amphiphilic block copolymer composed of methoxy polyethylene glycol (mPEG) and polycaprolactone (PCL). The hydrophobic PCL segment enables efficient encapsulation of hydrophobic drugs, while the hydrophilic PEG segment improves aqueous solubility, colloidal stability, and biocompatibility. mPEG-PCL is widely used for polymeric micelles, nanoparticle fabrication, drug delivery, and biomedical research applications.

Product Specifications

Product Name: PCL-mPEG
Polymer Composition: Methoxy Polyethylene Glycol-b-Polycaprolactone
Molecular Weight: Custom PEG and PCL molecular weights available
Functional Groups: Methoxy (mPEG terminus)
Appearance: White to off-white solid
Solubility: Water, DMSO, DMF, THF, Chloroform
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%

MPEG-PCL structure

Description

General Description

PCL-mPEG is a biodegradable block copolymer that combines the hydrophobic characteristics of poly(ε-caprolactone) with the hydrophilic and biocompatible properties of methoxy polyethylene glycol. Due to its amphiphilic structure, PCL-mPEG readily self-assembles into micelles and nanoparticles in aqueous environments, making it an attractive material for encapsulation and delivery of hydrophobic therapeutic agents.

The PCL segment undergoes slow hydrolytic degradation, providing sustained drug release profiles, while the mPEG segment enhances water dispersibility, colloidal stability, and circulation time. PCL-mPEG has been extensively investigated for controlled drug delivery, cancer therapy, gene delivery, tissue engineering, and nanomedicine applications.


Applications

  • Polymeric micelle preparation
  • Nanoparticle fabrication
  • Drug delivery systems
  • Controlled drug release
  • Anticancer drug delivery
  • Protein and peptide delivery
  • Nanomedicine research
  • Biomedical coatings
  • Tissue engineering
  • Imaging agent delivery

Features and Benefits

  • Tin-free synthesis process
  • Biodegradable PCL block
  • Hydrophilic PEG segment improves biocompatibility
  • Self-assembles into polymeric micelles
  • Suitable for hydrophobic drug encapsulation
  • Excellent colloidal stability
  • Prolonged circulation properties
  • Available in multiple molecular weight combinations

Additional information

Molecular Weight-PCL

1000, 2000, 3000, 4000, 5000, 6000, 8000, 10k

Molecular weight-PEG

1000, 2000, 5000

Package size

1g, 10g