Description

Polyethylene Oxide-Polylactic Acid Block Copolymer is a synthetic, amphiphilic block copolymer designed for advanced material science and biomedical applications. This compound is highly valued for its unique ability to combine the hydrophilic properties of polyethylene oxide (PEO) with the biodegradable characteristics of polylactic acid (PLA). It is essential for researchers and manufacturers in the pharmaceutical, biomedical engineering, and specialty chemical sectors who require precise control over material degradation, drug release kinetics, and surface modification.

Application

• Drug Delivery Systems: As a key excipient in the formulation of micelles, nanoparticles, and hydrogels for controlled and targeted release of active pharmaceutical ingredients (APIs).
• Tissue Engineering Scaffolds: Used to create biodegradable and biocompatible matrices that support cell growth and tissue regeneration.
• Surface Modification Agent: Imparts stealth properties and improves biocompatibility of medical devices and implants by reducing protein adsorption.
• Specialty Additives: Functions as a viscosity modifier, dispersant, or compatibilizer in high-performance coatings and formulations.
• Research & Development: A critical material for academic and industrial R&D focused on novel polymer chemistry, nanotechnology, and smart materials.

Basic Information

Product Name	Polyethylene Oxide-Polylactic Acid Block Copolymer
CAS No.	113717-54-7
Molecular Formula	(C2H4O)m-(C3H4O2)n
Molecular Weight	Variable (Grade Dependent)
Synonyms	PEO-PLA Block Copolymer; Poly(ethylene glycol)-block-poly(lactic acid); PEG-PLA Diblock Copolymer; Poly(ethylene oxide)-b-poly(lactide); PLA-PEO Block Copolymer; Poly(oxyethylene)-block-poly(lactic acid); Amphiphilic PEG-PLA Copolymer; Polylactide-Polyethylene Glycol Block Copolymer
EINECS	Contact for details

Quality Control

Our Polyethylene Oxide-Polylactic Acid Block Copolymer is manufactured under a strict quality management system. Each batch is characterized to ensure critical parameters such as block ratio, molecular weight, polydispersity index (PDI), and purity meet stringent specifications. Certificates of Analysis (COA) detailing results from advanced analytical techniques like Gel Permeation Chromatography (GPC) and Nuclear Magnetic Resonance (NMR) are provided to guarantee batch-to-batch consistency and traceability for your R&D and GMP-grade production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C for long-term stability. This material is hygroscopic (moisture-sensitive). Allow the sealed container to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid or powder
Identification (IR)	Conforms to structure
Block Ratio (PEO:PLA)	As per customer grade (e.g., 50:50, 70:30)
Molecular Weight (Mn)	1,000 - 20,000 Da (Customizable)
Polydispersity Index (PDI)	≤ 1.30
Residual Solvent	Meets ICH guidelines
Water Content	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.