Poly(propylene glycol) 4000 TCI P3279

Chemical Identity

CAS No.: 25322-69-4

Rp 557.550,00

~~Rp 405.300,00~~ Rp 557.550,00

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Berat 25g 500g

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Poly(propylene glycol) 4000 is the highest molecular weight member of this PPG series, with a nominal average molecular weight of 4000. This polyether diol consists of a very long chain of propylene oxide units, with a hydroxyl group at each end. In the laboratory, PPG 4000 is used to build polymers with the longest soft segments in the series, such as highly flexible elastomers, sealants and flexible coatings. It also serves as a long hydrophobic block when designing copolymers.

PPG 4000 stands out because of its chain length, which gives the widest possible spacing between crosslinks and high flexibility in the finished material. It has the lowest hydroxyl content per unit mass in this series, so its reaction with isocyanates produces a soft, elastic network. The chain is strongly hydrophobic and practically insoluble in water, but it remains compatible with many organic solvents. Although viscous, the material is generally still a liquid, so it can be handled with standard laboratory equipment.

For Indonesian laboratories, PPG 4000 is useful in research on construction sealants, elastomeric coatings, flexible adhesives and soft materials for automotive applications. University polymer research groups, industrial R&D teams and formulation laboratories can use it as a reference soft-segment building block. It makes it easier to study systematically how chain length affects flexibility, elasticity and the final performance of polyurethane and related polymer systems.

TCI brochures (PDF)

Monomers 2025-05-28 · p. 26

Related TCI products

Flexible polyurethane elastomers: its very long polyether chain and low hydroxyl content give soft, highly elastic networks when it reacts with isocyanates.
Construction sealant research: the long soft segments give the high flexibility and elasticity that sealant formulations need to accommodate joint movement.
Elastomeric and flexible coatings: maximum crosslink spacing gives coating films that stay pliable, which suits studies of flexibility in protective coating systems.
Flexible adhesive development: its soft, elastic polyol backbone helps researchers formulate adhesives that keep bonds flexible rather than brittle in the cured material.
Block copolymer design: its strongly hydrophobic, water-insoluble chain serves as a long hydrophobic block when building amphiphilic or segmented copolymer architectures.

Brand	TCI (product code P3279)
CAS number	25322-69-4
Molecular formula	—
Purity	—
Category	Materials Science > Polymer/Macromolecule Reagents > Monomers
Pack sizes	available in the pack sizes offered by TCI for this product
Physical form	viscous liquid; nominal average molecular weight 4000
Storage	keep tightly closed in a cool, dry place, following the TCI label and Safety Data Sheet

Store Poly(propylene glycol) 4000 in its original, tightly closed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources and strong oxidizing agents. Keep the container sealed when not in use so moisture does not affect hydroxyl-reactive formulations such as polyurethane systems. Because the liquid is viscous, use suitable pipettes, spatulas or weighing methods to measure it accurately. Follow standard laboratory practice: wear safety glasses, gloves and a lab coat, avoid contact with eyes and skin, clean up spills promptly, and always check the product's Safety Data Sheet for specific guidance.

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