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Sigma-Aldrich

Trimethylolpropane ethoxylate triacrylate

average Mn ~428

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Synonym(s):
Ethoxylated trimethylolpropane triacrylate, Polyethylene glycol trimethylolpropane ether triacrylate
Linear Formula:
[H2C=CHCO2(CH2CH2O)nCH2]3CC2H5
CAS Number:
28961-43-5
UNSPSC Code:
12162002
PubChem Substance ID:
24865619
NACRES:
NA.23

form

liquid

Quality Level

100

mol wt

average Mn ~428

refractive index

n20/D 1.471 (lit.)

bp

157 °C (lit.)

density

1.11 g/mL at 25 °C

SMILES string

CCC(COCCOC(=O)C=C)(COCCOC(=O)C=C)COCCOC(=O)C=C

InChI

1S/C21H32O9/c1-5-18(22)28-12-9-25-15-21(8-4,16-26-10-13-29-19(23)6-2)17-27-11-14-30-20(24)7-3/h5-7H,1-3,8-17H2,4H3

InChI key

MTPIZGPBYCHTGQ-UHFFFAOYSA-N

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General description

Trimethylolpropane ethoxylate triacrylate belongs to the class of monomers known as acrylate esters. It exhibits low viscosity and high reactivity due presence of multiple acrylate functional groups which allows rapid polymerization and cross-linking. This monomer is widely used to prepare UV-curable resins for 3D printing, optical coatings for display devices, and dental composite restorative materials. It also possesses inherent hydrophobic characteristics suitable for applications where water resistance or moisture barrier properties are required.

Application

Trimethylolpropane ethoxylate triacrylate can be used:
  • As a cross-linking agent or a polymerizable monomer in the preparation of gel polymer electrolyte for Lithium-ion batteries. It enhances the thermal stability, ionic conductivity, and mechanical strength of the polymer.
  • As a monomer to prepare UV-curable resins via vat photopolymerization, for stereolithography (SLA) and digital light processing (DLP). These techniques have potential applications in the 3D printing of medical devices, soft robots, dental implants, Optical adhesives, and microfluidic devices.
  • To synthesize inverse micropatterned photonic crystal (PhC) films via photopolymerization for the detection of alcohol content in water.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317,H319,H412

Hazard Classifications

Aquatic Chronic 3 - Eye Irrit. 2 - Skin Sens. 1B

WGK

WGK 1

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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