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Send EmailIsopentenyl Polyoxyethylene Ether, Isopentenol Polyoxyethylene Ether, IPEG, TPEG
| Parameter | Description |
|---|---|
| Product Name | TPEG (Isopentenyl Polyoxyethylene Ether) |
| Other Names | TPEG, IPEG (sometimes used interchangeably), Isopentenol Polyoxyethylene Ether |
| Chemical Structure | CH₂=C(CH₃)CH₂CH₂O(CH₂CH₂O)ₙH |
| Type | Powder / Flakes |
| Shelf Life | 24 months |
| Primary Application | Synthesis of Polycarboxylate Superplasticizers (PCE) |
| Standard | JC/T 2033-2018 (Chinese industry standard for polyether macromonomers) |
PRODUCT DESCRIPTION AND EXPLANATION:
TPEG (Isopentenyl Polyoxyethylene Ether) is a key macromonomer used in the production of high-performance Polycarboxylate Superplasticizers (PCE). It is a polyether product with a five-carbon alcohol as the starting material. The structure consists of an unsaturated double bond at one end for polymerization and a hydrophilic polyethylene oxide chain that provides steric hindrance in cement pastes.
TPEG is a white to light yellow powder or flake with high active double bond retention, which ensures good reactivity for polymerization. It is designed to provide PCE products with excellent slump retention, especially in ready-mix concrete under hot weather conditions.
| Property | Value / Range | Explanation |
|---|---|---|
| Appearance (25°C) | White to Light Yellow Flakes/Powder | |
| Active Double Bond Retention Rate | ≥ 90% | Ensures high reactivity for polymerization |
| pH (1% aqueous solution) | 5.0 – 7.0 | |
| Moisture Content | ≤ 0.5% | |
| Degree of Polymerization | Controlled, narrow distribution | Provides consistent performance |
| Solubility | Easily soluble in water | Important for synthesis and application |
PHYSICAL AND CHEMICAL PROPERTIES EXPLANATION:
TPEG is a solid powder or flake. Its key feature is the high active double bond retention rate (≥90%), which directly correlates to its polymerization reactivity. A lower retention rate would result in lower efficiency when synthesizing the PCE copolymer. The pH (5.0-7.0) and low moisture content ensure stability and efficient reaction in the synthesis process.
| Application | Description |
|---|---|
| Polycarboxylate Superplasticizer (PCE) Synthesis | Used as a macromonomer for PCE production |
| Slump Retention | Provides excellent slump retention in ready-mix concrete, especially in hot weather |
| Dispersibility | Enhances water-reducing rate and dispersibility of the synthesized copolymer |
| Workability | Improves viscosity and workability of fresh concrete |
| Adaptability | Compatible with cement, fly ash, silica fume, and slag |
APPLICATION EXPLANATION:
TPEG is the primary macromonomer used to synthesize PCE, accounting for a significant portion of the PCE molecule's mass. When used to synthesize PCE, the product offers high water-reducing rates (typically 25-40%) and superior slump retention, helping maintain concrete workability over time. It is designed to be compatible with various cement types and supplementary cementitious materials.
| Parameter | Specification |
|---|---|
| Standard Compliance | JC/T 2033-2018 (Chinese industry standard) |
| Appearance (25°C) | White to light yellow flake/powder |
| pH (1% Aqueous Solution) | 5.0 – 7.0 |
| Hydroxyl Value (mg/g) | Varies by grade (e.g., 23.4±2.0 for T2403; 18.7±2.0 for T3003) |
| Moisture Content | ≤ 0.5% |
| Double Bond Retention Rate | ≥ 90% |
| Parameter | Information |
|---|---|
| Packaging | 25 kg bags or 650 kg jumbo bags |
| Storage Conditions | Keep in cool, dry, and ventilated place; avoid direct sunlight and moisture |
| Shelf Life | 12 months under recommended storage conditions |
STORAGE AND HANDLING EXPLANATION:
TPEG is stable and non-hazardous. It should be stored in a cool, dry, and well-ventilated warehouse away from direct sunlight and rain. Proper storage is crucial to maintain its shelf life of 12 months.
| Parameter | Information |
|---|---|
| GHS Classification | Non-hazardous; non-toxic, non-irritative, non-flammable, non-explosive |
| Health Risks | Avoid inhalation of dust |
| Handling | Use protective mask; prevent contact with eyes and skin; wear gloves and goggles |
| First Aid | In case of contact, rinse immediately with plenty of water. If ingested, drink sufficient water to induce vomiting and go to hospital |
| Transport | Can be transported as a common chemical product |
| Disposal | Dispose according to local regulations |
SAFETY AND HANDLING EXPLANATION:
TPEG is considered a safe material for handling. It is non-toxic, non-irritative, non-radioactive, non-flammable, non-explosive, and non-corrosive. Standard precautions for powder handling should be followed, including avoiding dust inhalation and using appropriate PPE (gloves, goggles) to prevent skin and eye contact.
The following table compares the main macromonomers (VPEG, EPEG, TPEG, and HPEG) used in the production of Polycarboxylate Superplasticizers (PCE). The table provides a comparison in terms of chemical structure, functional properties, and application advantages, excluding commercial product names.
| Monomer | Chemical Name | Structural Feature | Application / Advantage |
|---|---|---|---|
| VPEG | Hydroxybutyl Vinyl Ether Polyoxyethylene Ether | Vinyl ether structure, hydroxybutyl group | High water reduction, early strength development in PCE production |
| EPEG | Ethylene Glycol Monovinyl Ether Polyoxyethylene Ether | Ethylene glycol-based vinyl ether | Slump retention, workability in hot weather conditions |
| TPEG | Isoprenyl Oxy Polyoxyethylene Ether | Isoprenyl-initiated polyether | Slump retention, viscosity-enhancing effect, ideal for ready-mix concrete in hot climates |
| HPEG | Methallyl Oxy Polyoxyethylene Ether | Methallyl group-containing polyether | High water reduction, durability, shrinkage and creep control |
| Property | Description |
|---|---|
| Structure | Vinyl ether structure, contains hydroxybutyl group |
| Reactivity | High (double bond retention rate ≥90-96%) |
| Primary Advantage | High water reduction (20-30%) and early strength development |
| Ideal Application | Projects requiring early strength, high-strength concrete |
| Temperature Sensitivity | Low polymerization temperature (≥5°C) |
| Synthesis Ease | Suitable for single-pot synthesis method |
VPEG Description: VPEG is a highly reactive vinyl ether macromonomer. The hydroxybutyl group provides flexibility and additional functionality to the polymer chain. VPEG-based PCEs provide high water reduction (20-30%) and early strength development. Offers production ease with low polymerization temperature (≥5°C) and single-pot synthesis. Ideal for high-strength concrete (C60+) applications.
| Property | Description |
|---|---|
| Structure | Ethylene glycol-based vinyl ether |
| Reactivity | High (double bond retention rate ≥90-93%) |
| Primary Advantage | Slump retention, workability in hot weather conditions |
| Ideal Application | Ready-mix concrete in hot climates, long-distance transport |
| Temperature Sensitivity | Polymerization possible at ≥5°C |
| Synthesis Ease | Single-pot synthesis, 30-40 minutes reaction time |
EPEG Description: EPEG is an ethylene glycol-based vinyl ether macromonomer. Its special molecular structure reduces steric hindrance of side chains, lowering concrete viscosity and improving slump retention. EPEG-based PCEs provide superior workability especially in ready-mix concrete applications under hot weather conditions. Simplifies the production process with low polymerization temperature and single-pot synthesis. Ideal for long-distance transport projects and applications with poor quality aggregates.
| Property | Description |
|---|---|
| Structure | Isoprenyl-initiated polyether |
| Reactivity | High (double bond retention rate ≥90%) |
| Primary Advantage | Slump retention, viscosity-enhancing effect |
| Ideal Application | Ready-mix concrete in hot climates, applications where slump loss is critical |
| Form | Powder / Flakes |
| Storage | 12 months (cool, dry environment) |
TPEG Description: TPEG (Isopentenyl Polyoxyethylene Ether) is an isoprenyl-initiated polyether macromonomer. With high double bond retention (≥90%) and narrow molecular weight distribution, it is ideal for PCE synthesis. TPEG-based PCEs provide superior slump retention, especially in ready-mix concrete applications in hot climates. It maintains concrete workability over extended periods, increases viscosity, and is compatible with different cement types, fly ash, silica fume, and slag. The powder form provides easy transport and storage advantages. Optimized for projects where slump loss is critical under hot weather conditions.
| Property | Description |
|---|---|
| Structure | Methallyl group-containing polyether |
| Reactivity | High |
| Primary Advantage | High water reduction, durability, shrinkage and creep control |
| Ideal Application | Structures requiring durability and long-term performance |
| Synthesis | Free radical copolymerization |
| Compatibility | Wide cement compatibility |
HPEG Description: HPEG (Methallyl Oxy Polyoxyethylene Ether) is a polyether macromonomer containing a methallyl group. HPEG-based PCEs provide high water reduction, superior durability, and shrinkage with creep control. Preferred in applications where long-term concrete performance is critical, such as infrastructure projects, bridges, dams, and industrial floors. Its wide cement compatibility and free radical polymerizability make HPEG a common PCE macromonomer.
| Monomer | Primary Advantage | Ideal Use | Temperature Sensitivity |
|---|---|---|---|
| VPEG | Early strength, high water reduction | High-strength concrete (C60+), projects requiring early strength | ≥5°C |
| EPEG | Slump retention, hot weather workability | Ready-mix concrete in hot climates, long-distance transport | ≥5°C |
| TPEG | Slump retention, viscosity increase | Ready-mix concrete in hot climates, projects with critical slump loss | 12 months storage |
| HPEG | Durability, shrinkage and creep control | Infrastructure projects, bridges, dams | Standard |
VPEG → Primarily for early strength and water reduction. Preferred in high-strength concrete applications. Offers production ease with single-pot synthesis.
EPEG → Strong slump retention performance. Ideal for ready-mix concrete applications in hot weather conditions and long-distance transport. Reduces concrete viscosity.
TPEG → Optimized specifically for slump retention in hot climates. Maintains ready-mix concrete workability over extended periods. Provides storage and transport advantages with powder form.
HPEG → Preferred for durability and long-term performance. Used in infrastructure projects where shrinkage and creep control are critical.
| Application Requirement | Recommended Monomer |
|---|---|
| Early strength and high water reduction | VPEG |
| Slump retention in hot climates | EPEG or TPEG |
| Long-distance transport and workability | EPEG |
| Slump retention in hot climates | TPEG |
| Durability and long-term performance | HPEG |
| High-strength concrete (C60+) | VPEG or TPEG |
| Working with poor quality aggregates | EPEG |
| Infrastructure projects (bridges, dams) | HPEG |
| Low-temperature polymerization | EPEG or VPEG |
| Powder form storage/transport | TPEG |
TPEG SUMMARY:
TPEG (Isopentenyl Polyoxyethylene Ether) is a key macromonomer for synthesizing high-performance Polycarboxylate Superplasticizers (PCE). It is a solid powder with high double bond retention (≥90%) and low moisture content, designed to provide excellent slump retention and dispersibility in concrete applications. It is compatible with various cement types and supplementary materials and is available in powder form for easy handling and synthesis. Store in a cool, dry place for up to 12 months.
| Property | Value |
|---|---|
| Product Name | TPEG (Isopentenyl Polyoxyethylene Ether) |
| Chemical Name | Isopentenyl Polyoxyethylene Ether |
| Type | Powder / Flakes |
| Appearance | White to light yellow flakes/powder |
| pH (1% solution) | 5.0 – 7.0 |
| Double Bond Retention | ≥ 90% |
| Moisture Content | ≤ 0.5% |
| Solubility | Soluble in water |
| Shelf Life | 12 months |
| Industry | Applications |
|---|---|
| Construction | Polycarboxylate Superplasticizer (PCE) synthesis |
| Concrete Admixtures | Slump retention, water reduction, viscosity enhancement |
| Compatible Materials | Cement, fly ash, silica fume, and slag |
NON-HAZARDOUS: Non-toxic, non-irritative, non-flammable, non-explosive
DUST RISK: Avoid inhalation of dust; use protective mask
PPE: Wear gloves and goggles to prevent contact with eyes and skin
FIRST AID: Rinse contact areas with plenty of water
STORAGE: Store in cool, dry, ventilated place away from sunlight and moisture
Macromonomer: TPEG is the primary building block for PCE production, accounting for a significant mass fraction of the final polymer. Its quality (particularly double bond retention and molecular weight distribution) directly impacts PCE performance.
Slump Retention: TPEG-based PCE is specifically designed for excellent slump retention in ready-mix concrete, with performance maintained over several hours. This makes it especially suitable for hot weather conditions.
Compatibility: It shows good adaptability to different types of cement, fly ash, silica fume, and slag.
CAS Note: The product is a polymer; its CAS number is not provided. The number listed ([109-16-0]) is for a related small molecule (Triethylene Glycol Dimethacrylate) and is not a synonym for TPEG. Other sources list a different CAS number (62601-60-9) for similar polyether macromonomers, but this is not confirmed for this specific TPEG product.
TPEG's Position Among PCE Macromonomers: TPEG is optimized specifically for slump retention and viscosity enhancement in hot climates. While VPEG excels in early strength and water reduction, EPEG in slump retention, and HPEG in durability and long-term performance, TPEG is the most suitable option for ready-mix concrete applications under hot weather conditions.
IMPORTANT DISCLAIMER: This Technical Data Sheet (TDS) and comparison table are for informational purposes only and are prepared based on available technical data. The information provided, excluding commercial product names, offers general chemical structure and functional property comparisons. The user is solely responsible for determining the product's suitability for their specific applications and for complying with all applicable local, national, and international regulations and safety requirements. For complete safety, storage, handling, transport, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier for each product. Users are obligated to test the products in their own processes and applications. All occupational health and safety rules must be observed when working with TPEG and other macromonomers.