INDUSTRY COMPONENT

Polyethylene Glycol Polymer Chains

Polyethylene glycol polymer chains are hydrophilic synthetic polymers used as plasticizers in industrial applications to improve flexibility and processing.

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Component Specifications

Definition
Polyethylene glycol (PEG) polymer chains are linear, water-soluble polyether compounds synthesized by polymerization of ethylene oxide. In industrial-grade polyethylene glycol plasticizers, these chains function as molecular spacers that reduce intermolecular forces between polymer matrices, lowering glass transition temperatures and enhancing material flexibility. The chains exhibit variable molecular weights (typically 200-35,000 g/mol) that determine their plasticization efficiency, with higher molecular weights providing more permanent effects due to reduced migration.
Working Principle
PEG polymer chains plasticize materials through molecular intercalation between polymer chains, reducing secondary bonding forces and increasing free volume. This allows polymer segments greater mobility, lowering stiffness and brittleness while maintaining chemical stability. The hydrophilic nature of PEG chains enables moisture retention in hygroscopic materials.
Materials
Synthetic polyether polymer composed of repeating -CH2-CH2-O- units. Industrial grades typically contain >99% purity with controlled molecular weight distribution. May contain antioxidants (BHT) or stabilizers.
Technical Parameters
  • Color (APHA) <50
  • Melting Point 4-65°C
  • Water Content <0.5%
  • Hydroxyl Value 10-560 mg KOH/g
  • pH (5% solution) 4.0-7.5
  • Viscosity (40°C) 4-900 cSt
  • Molecular Weight Range 200-35,000 g/mol
Standards
ISO 3451-1, DIN 55945, ASTM D4274

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Polyethylene Glycol Polymer Chains.

PEG polymer chains polyethylene glycol plasticizer industrial plasticizer polymer additive chemical manufacturing material flexibility Polyethylene Glycol Polymer Chains Polyethylene Glycol Polymer Chains in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Industrial Grade Polyethylene Glycol Plasticizer

High-purity polymeric plasticizer for industrial chemical formulations

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Engineering Analysis

Risks & Mitigation
  • Hydrolysis degradation in acidic/alkaline conditions
  • Thermal oxidation above 200°C
  • Migration in low molecular weight grades
  • Moisture absorption affecting dimensional stability
FMEA Triads
Trigger: Molecular weight too low for application
Failure: Excessive plasticizer migration causing surface tackiness
Mitigation: Use higher MW grades (>4000) or incorporate crosslinking agents
Trigger: Incompatibility with hydrophobic polymers
Failure: Phase separation and reduced mechanical properties
Mitigation: Use compatibility agents or select modified PEG derivatives
Trigger: Oxidative degradation during processing
Failure: Discoloration and reduced plasticization efficiency
Mitigation: Add antioxidants (BHT, Irganox) and control processing temperatures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% molecular weight variation, ±0.1% hydroxyl value deviation
Test Method
GPC for molecular weight distribution, titration for hydroxyl value, Karl Fischer for moisture content

Buyer Feedback

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Frequently Asked Questions

What is the difference between PEG 400 and PEG 6000 in plasticizer applications?

PEG 400 (MW~400) provides temporary plasticization with higher migration rates, while PEG 6000 (MW~6,000) offers permanent flexibility with minimal migration due to larger molecular size and reduced volatility.

Can polyethylene glycol polymer chains be used in food-contact applications?

Yes, specific PEG grades are FDA-approved for indirect food contact applications when they meet purity requirements specified in 21 CFR 178.3750.

How do PEG chains affect material water absorption?

PEG's hydrophilic nature increases material hygroscopicity, which can be beneficial for moisture retention but may require additional moisture barriers in humid environments.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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