{"product_id":"cgpemoegma","title":"OEGMA {Oligo(ethylene glycol) methyl ether methacrylate} as Crosslinking Monomer for Gel Polymer Electrolytes (GPEs), CGPEMOEGMA","description":"\u003cp\u003eOEGMA (Oligo(ethylene glycol) Methyl Ether Methacrylate) is one of the most effective monomers for fabricating next-generation gel polymer electrolytes (GPEs). It serves as a structural bridge between traditional poly(ethylene oxide) (PEO) solid-state electrolytes and liquid electrolytes. Chemically, an OEGMA monomer consists of a polymerizable methacrylate backbone attached to a short, flexible oligo(ethylene glycol) (OEG) side chain—essentially a short pendant piece of PEO terminating in a methyl ether group.\u003c\/p\u003e\n\u003cp\u003e When OEGMA is polymerized \u003ci data-path-to-node=\"4\" data-index-in-node=\"26\"\u003ein situ\u003c\/i\u003e, it forms a \"comb-like\" or \"bottle-brush\" polymer architecture. This structural layout provides distinct thermodynamic and kinetic advantages for ion transport: (1) \u003cstrong\u003eSuppressed Crystallinity\u003c\/strong\u003e: Traditional high-molecular-weight PEO is highly crystalline at room temperature, which locks the polymer chains in place and drops ionic conductivity to impractical levels (10^{-7} to 10^{-6} S cm-1). The dangling side chains of poly-OEGMA are too short to organize into a crystalline lattice. This keeps the matrix highly amorphous, lowering the glass transition temperature (Tg) and keeping the chains flexible. (2) \u003cstrong\u003eDecoupled Ion Transport\u003c\/strong\u003e: In classic PEO, lithium or sodium ions migrate via the slow, cooperative segment motion of the main polymer backbone. In poly-OEGMA, the highly flexible, fast-moving side chains act as rapid \"ion-conduction highways.\" The cations coordinate with the ether oxygens (C-O-C) on these side chains, allowing rapid hopping that is partially decoupled from the main chain movement.\u003c\/p\u003e\n\u003cp\u003eTo form a dimensionally stable gel that won't leak under pouch-cell calendering or cycling pressure, OEGMA is co-polymerized in situ with a multi-functional crosslinker like PEGDA (Polyethylene Glycol Diacrylate) or ETPTA. Typical Precursor Formulation: 80–90 wt% OEGMA (for high ionic mobility) + 10–20 wt% PEGDA (for 3D structural network) + Liquid Electrolyte (Salt + Solvent) + Thermal Initiator (AIBN).\u003c\/p\u003e\n\u003cp\u003eThe electron-donating ether groups in OEGMA make it susceptible to oxidative decomposition at high potentials (typically limited to around 4.2V vs. Li\/Li+). To push OEGMA gels into high-voltage territory (such as ultra-high nickel NCM or high-voltage sodium layered oxides), it is often co-polymerized with fluorinated or cyano-functionalized monomers like TFEMA (2,2,2-Trifluoroethyl Methacrylate) or AN (Acrylonitrile). The electron-withdrawing co-monomers lower the HOMO level of the final gel matrix, stabilizing it against high-voltage cathode surfaces.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; height: 371.85px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 47.6875px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 47.6875px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 47.6875px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCGPEMOEGMA (C-GPE-M-OEGMA)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e26915-72-0\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 155.725px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 155.725px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 155.725px;\"\u003e\n\u003cp\u003e\u003cem\u003eH2C=C(CH3)COO(CH2CH2O)nCH3\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CGPEMOEGMA_chemical_structure_100x100.jpg?v=1783280620\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.2px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 71.2px;\"\u003e\u003cem\u003eAverage Molecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 71.2px;\"\u003e\n\u003cp\u003e\u003cspan\u003eMw= 300-950, liquid\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMw=2000, solid powder\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 35.6px;\"\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e~1.05 g\/mL at 25 °C\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.0375px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 26.0375px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 26.0375px;\"\u003e100 g\/bottle (liquid), 5 g\/bottle (solid powder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please try to store the OEGMA monomer in a dry place. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775314012415\"\u003e\u003cspan\u003eS. D. Tillmann, et al. Gel polymer electrolyte for lithium-ion batteries comprising cyclic carbonate moieties, Journal of Power Sources, 2014, 271, 239-244\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775312015327\"\u003e\u003cspan\u003eP. Isken, et al. Methacrylate based gel polymer electrolyte for lithium-ion batteries, Journal of Power Sources, 2013, 225, 157-162\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Sigma","offers":[{"title":"Mw = 300 Liquid 100 g\/bottle","offer_id":47951146189030,"sku":"CGPEMOEGMA300","price":129.0,"currency_code":"USD","in_stock":true},{"title":"Mw = 500 Liquid 100 g\/bottle","offer_id":47951146221798,"sku":"CGPEMOEGMA500","price":139.0,"currency_code":"USD","in_stock":true},{"title":"Mw = 950 Liquid 100 g\/bottle","offer_id":47951164145894,"sku":"CGPEMOEGMA950","price":149.0,"currency_code":"USD","in_stock":true},{"title":"Mw = 2000 Solid 5 g\/bottle","offer_id":47951365144806,"sku":"CGPEMOEGMA2000","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CGPEMOEGMA_main.jpg?v=1783280460","url":"https:\/\/echemsupplies.com\/products\/cgpemoegma","provider":"EChem Supplies","version":"1.0","type":"link"}