Polyethylene Glycol Polymer Chains: Color (APHA) <50

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

Parameter	Typical range	Notes & selection driver
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

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 3451-1, DIN 55945, ASTM D4274

Parent Products

This component is used in the following industrial products

Industrial Grade Polyethylene Glycol Plasticizer

Industrial Grade Polyethylene Glycol Plasticizer is a high-purity, water-soluble polymer additive used to modify the physical properties of various industrial materials.

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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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Polyethylene Glycol Polymer Chains

Manufacturer profiles associated with Polyethylene Glycol Polymer Chains.

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Polyethylene Glycol Polymer Chains