EOEOEA {2-(2-Ethoxyethoxy)ethyl acrylate, >99.0%} as Crosslinking Monomer for Gel Polymer Electrolytes (GPEs), 50-200 g/bottle, CGPECMEOEOEA

EOEOEA (2-(2-Ethoxyethoxy)ethyl acrylate) (C9H16O4) is a flexible, long-chain monofunctional acrylate monomer featuring an ethoxyethoxyethyl oligo(ethylene glycol) ether side chain attached to a reactive acrylate group. While multifunctional crosslinkers provide primary 3D network connectivity, EOEOEA is utilized in advanced energy storage research as a specialized, highly flexible functional co-monomer and reactive diluent for Gel Polymer Electrolytes (GPEs) and solid-state polymer electrolyte systems. It combines low liquid viscosity with PEO-like ether oxygen linkages that actively assist in alkali metal ion solvation and local chain segmental motion.

Its main structural features are: (1) Oligo-Ether Side Chain Architecture: Features a recurring ether-oxygen sequence (-CH2CH2OCH2CH2OCH2CH3) that structurally mimics short segments of polyethylene oxide (PEO). This local chemical environment promotes Lewis acid-base coordination with lithium (Li+) or sodium (Na+) ions. (2) Low Liquid Viscosity & Reactive Dilution: Possesses very low room-temperature viscosity and high boiling characteristics, functioning as an efficient reactive diluent that dissolves readily in aprotic carbonate binary/ternary solvent blends (EC/DEC/DMC/PC) and thoroughly wets porous separator membranes (glass fiber, PE/PP) and dense electrode microstructures prior to curing. (3) Exceptional Chain Flexibility & Low Tg: The flexible ethoxyethoxyethyl tail imparts a very low glass transition temperature (Tg) to the resulting polymer chains, enhancing amorphous domain mobility and preventing embrittlement during prolonged charge-discharge cycling. (4) Rapid Acrylate Polymerization Kinetics: As an acrylate derivative, EOEOEA exhibits fast free-radical propagation rates under thermal or UV activation, ensuring efficient copolymerization into the growing 3D polymer network.

Part Number	CGPECMEOEOEA (C-GPE-CM-EOEOEA)
CAS	7328-17-8
Chemical Formula	C₉H₁₆O₄
Molecular Weight	188.22 g/mol
Appearance	Colorless liquid
Purity	>99.0%
Density	1.03 g/mL
Viscosity	3-10 cps
Package Size	50 g, 100 g, and 200 g/bottle

Notes: Please try to store the EOEOEA liquid in a dry place and dark place.

References: 

1. C. Liu, et al. In Situ Construction of Zwitterionic Polymer Electrolytes with Synergistic Cation–Anion Regulation Functions for Lithium Metal Batteries, Adv. Funct. Mater., 2024, 34, 2307248
2. Z. Qiu, et al. Surface activated polyethylene separator promoting Li+ ion transport in gel polymer electrolytes and cycling stability of Li-metal anode, Chemical Engineering Journal, 2019, 368, 321-330