PEGDMA {Poly(ethylene glycol) dimethacrylate} as Solid-State & Gel Polymer Electrolyte, 100 mL or 10 g/bottle, CSSGPEPEGDMA

Poly(ethylene glycol) dimethacrylate (PEGDMA) is a premier candidate for solid-state and gel polymer electrolytes (GPEs). It combines the ion-coordinating capability of poly(ethylene oxide) (PEO)-like segments with cross-linkable methacrylate end-groups, enabling mechanically robust, dimensionally stable polymer networks.

The PEGDMA framework operates via a dual-functional mechanism: (1) Ion Conduction Pathways: The repeating ethylene oxide (—CH₂—CH₂—O—) units in the backbone coordinate with metal cations (like Li+ or Na+). Ion transport is decoupled from the polymer backbone and driven primarily by the segmental motion of these amorphous ether chains. (2) Mechanical Backbone: The methacrylate groups at both ends undergo free-radical polymerization to form a highly cross-linked 3D network. This structure prevents macroscopic flow, suppresses dendritic growth, and provides the structural integrity needed for thin-film processing.

PEGDMA networks are typically synthesized via in-situ polymerization, making them highly compatible with standard roll-to-roll manufacturing. The liquid precursor solution (PEGDMA monomer, salt, and initiator) is infiltrated directly into the electrode or separator matrix before curing: (1) Thermal Curing: Utilizing thermal initiators like AIBN (azobisisobutyronitrile) or BPO (benzoyl peroxide), typically processed between 60°C and 80°C. (2) UV Curing: Utilizing photoinitiators like HMPP (2-hydroxy-2-methylpropiophenone) or Irgacure 1173. This approach offers rapid, room-temperature cross-linking within seconds, minimizing thermal stress on sensitive components.

Part Number	CSSGPEPEGDMA (C-SSGPE-PEGDMA)
CAS	25852-47-5
Chemical Formula	C3H5C(O)(OCH2CH2)nOC(O)C3H5
Average Molecular Weight	(1) Mw = 400, liquid form, 100 mL/bottle  (2) Mw = 600, liquid form, 100 mL/bottle  (3) Mw = 750, liquid form, 100 mL/bottle (4) Mw = 1000, solid powder form, 10 g/bottle (5) Mw = 2000, solid powder form, 10 g/bottle (6) Mw = 4000, solid powder form, 10 g/bottle (7) Mw = 6000, solid powder form, 10 g/bottle (8) Mw = 10000, solid powder form, 10 g/bottle

Notes: Please try to store the PEGDMA in a dry place (glovebox is preferred). 

References: 

1. F. S. Genier, et al. A novel calcium-ion solid polymer electrolyte based on crosslinked poly(ethylene glycol) diacrylate, J. Power Sources, 2019, 414, 302-307
2. M. S Grewal, et al. Effect of the Poly(ethylene glycol) Diacrylate (PEGDA) Molecular Weight on Ionic Conductivities in Solvent-Free Photo-Cross-Linked Solid Polymer Electrolytes, Langmuir 2023, 39, 29, 10209–10215