TPGDA (Tripropylene glycol diacrylate, >95%} as Crosslinking Monomer for Gel Polymer Electrolyte, 50-200 g/bottle, CGPECMTPGDA
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Tripropylene glycol diacrylate (TPGDA) is a bifunctional aliphatic acrylate monomer (C15H24O6) featuring two reactive acrylate (CH2=CHCOO-) groups bridged by a flexible, ether-oxygen-containing tripropylene glycol soft segment. In advanced energy storage research, TPGDA is widely utilized as a standard flexible crosslinking agent for Gel Polymer Electrolytes (GPEs) and in situ polymerized solid/gel battery systems, providing an excellent balance of rapid curing kinetics, mechanical elasticity, and high ionic mobility for high-energy lithium and sodium metal batteries.
The main functional roles of the TPGDA in GPEs are: (1) Flexible 3D Network & Liquid Immobilization: Upon thermal or UV-initiated radical polymerization (using initiators like AIBN, BPO, or photoinitiators), TPGDA copolymerizes into a flexible 3D network that permanently traps and immobilizes organic liquid electrolytes. This eliminates free-flowing liquid leakage, converting high-energy liquid cells into safe, dimensionally stable gel systems. (2) High Ionic Conductivity via Segmental Mobility: The flexible tripropylene glycol soft segment ensures that the crosslinked polymer matrix does not overly restrict chain dynamics, allowing room-temperature ionic conductivities to routinely exceed 10^{-3} S/cm. (3) Stress Accommodation During Electrode Volume Fluctuations: The elastomeric nature of TPGDA-based networks allows the polymer matrix to absorb mechanical stresses and dynamically accommodate large volume fluctuations—such as those encountered in silicon anodes or high-capacity lithium/sodium metal plating—without interfacial delamination or cracking.
| Part Number |
CGPECMTPGDA (C-GPE-CM-TPGDA) |
| CAS |
42978-66-5 |
| Chemical Formula |
C15H24O6  |
| Appearance |
Colorless to light-yellow clear liquid |
| Purity |
>95% (stabilized with MEHQ) |
| Molecular Weight |
300.35 g/mol |
| Density |
~1.03 g/mL at 25 °C |
| Flash Point |
~153 °C |
| Package Size | 5 g, 10, and 20 g/bottle |
Notes: Please try to store the TPGDA monomer in a dry and dark place.
References:
- Y. Zhou, et al. In situ polymerization infiltrated three-dimensional garnet-based framework for quasi-solid lithium metal batteries, Electrochimica Acta, 2022, 434, 141353
- F. Chen, et al. Supramolecular Network Structured Gel Polymer Electrolyte with High Ionic Conductivity for Lithium Metal Batteries, Small, 2022, 18, 2106352