INDUSTRY COMPONENT

Polymer Chain

Polymer chain is the fundamental molecular structure in polyethylene glycol, consisting of repeating ethylene oxide units that determine material properties.

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Component Specifications

Definition
A polymer chain in industrial-grade polyethylene glycol refers to the linear macromolecular structure formed through polymerization of ethylene oxide monomers. These chains exhibit specific molecular weight distributions, chain lengths, and end-group functionalities that directly influence viscosity, thermal stability, solubility, and chemical reactivity in industrial applications.
Working Principle
Polymer chains function through covalent bonding between repeating monomer units, creating long-chain molecules. The chain length and molecular weight determine physical properties through entanglement and intermolecular forces, while end-group chemistry affects reactivity and compatibility with other substances.
Materials
High-purity ethylene oxide monomers, catalyst systems (typically alkali metal hydroxides or double metal cyanide complexes), chain transfer agents for molecular weight control, and stabilizers against thermal degradation.
Technical Parameters
  • Color (APHA) <50
  • Water Content <0.5%
  • Hydroxyl Value 10-560 mg KOH/g
  • pH (5% solution) 4.5-7.5
  • Viscosity (40°C) 5-15,000 mPa·s
  • Melting Point Range 4-65°C
  • Polydispersity Index 1.01-1.20
  • Molecular Weight Range 200-35,000 g/mol
Standards
ISO 9001, ISO 14001, ASTM D4875, USP-NF, EP, JP

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Polymer Chain.

polymer chain polyethylene glycol PEG molecular structure industrial polymers chemical manufacturing ethylene oxide polymerization macromolecular components Polymer Chain in Chemical Manufacturing

Parent Products

This component is used in the following industrial products

Industrial Grade Polyethylene Glycol

Polyether compound used as industrial chemical intermediate and processing aid

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Engineering Analysis

Risks & Mitigation
  • Thermal degradation at high temperatures
  • Oxidative chain scission
  • Moisture absorption affecting properties
  • Catalyst residue contamination
  • Molecular weight distribution variability
FMEA Triads
Trigger: Inadequate temperature control during polymerization
Failure: Broad molecular weight distribution and inconsistent properties
Mitigation: Implement precise temperature monitoring systems and automated control loops
Trigger: Catalyst deactivation or contamination
Failure: Incomplete polymerization and low molecular weight products
Mitigation: Regular catalyst quality testing and controlled storage conditions
Trigger: Moisture ingress during processing
Failure: Hydrolysis and chain termination leading to property deviations
Mitigation: Maintain nitrogen blanket systems and moisture monitoring

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±2% molecular weight variation, ±5% hydroxyl value, ±10% viscosity range
Test Method
GPC/SEC for molecular weight, titration for hydroxyl value, rotational viscometry, FTIR for structure confirmation

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What determines the properties of polyethylene glycol polymer chains?

Molecular weight distribution, chain length, end-group functionality, and polymerization method primarily determine viscosity, solubility, thermal stability, and chemical reactivity.

How are polymer chains controlled during manufacturing?

Through catalyst selection, reaction temperature, pressure control, monomer purity, and chain transfer agents to achieve specific molecular weights and narrow polydispersity.

What industrial applications use polyethylene glycol polymer chains?

Pharmaceuticals (excipients), cosmetics (emollients), lubricants, plasticizers, hydraulic fluids, and chemical intermediates in various manufacturing processes.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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