{"product_id":"cssgpepitpo","title":"TPO (2,4,6-trimethylbenzoyl-diphenylphosphine oxide, \u003e99%) as Photoinitiator for Solid-State \u0026 Gel Polymer Electrolyte, 100 g\/bottle, CSSGPEPITPO","description":"\u003cp\u003eUsing TPO (Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide) or its liquid derivative TPO-L (Ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate) as a photoinitiator is an excellent strategy for fabricating gel polymer electrolytes (GPEs) via in situ UV crosslinking. Compared to traditional Norrish Type I initiators like Irgacure 1173 or 2959, TPO offers unique chemical and optical advantages that align perfectly with the strict constraints of battery cell manufacturing.\u003c\/p\u003e\n\u003cp\u003eTPO possesses an absorption tail that extends out into the long-wavelength UV and near-visible blue region (365–420 nm). Standard battery separators (like PP\/PE celgard or glass fiber) and concentrated liquid electrolytes often scatter or absorb short-wavelength UV light (sub-300 nm). TPO can achieve rapid, deep through-cure even when curing in situ within a sealed pouch cell or through a semi-opaque separator layer.\u003c\/p\u003e\n\u003cp\u003eUpon UV exposure, TPO undergoes rapid homolytic Norrish Type I cleavage at the C–P bond. This generates two highly reactive radicals: a trimethylbenzoyl radical and a phosphinyl radical. Both radicals are incredibly efficient at initiating the radical polymerization of common GPE monomers like PEGDA (poly(ethylene glycol) diacrylate), ETPTA, or MMA.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003eWhile standard solid TPO can sometimes be stubborn to dissolve at high concentrations in highly polar or viscous electrolyte matrices, TPO-L is a liquid at room temperature. It mixes effortlessly with common carbonate solvents (EC, DEC, DMC, EMC) and ether\/glyme-based solvents without requiring aggressive heating or causing phase separation.\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable style=\"width: 100%; height: 399.438px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCSSGPEPITPO (C-SSGPE-PI-TPO)\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\u003e75980-60-8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 117px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 117px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 117px;\"\u003e\n\u003cp\u003e\u003cspan\u003e(CH\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003e)\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003eC\u003c\/span\u003e\u003csub\u003e6\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eCOP(O)(C\u003c\/span\u003e\u003csub\u003e6\u003c\/sub\u003e\u003cspan\u003eH\u003c\/span\u003e\u003csub\u003e5\u003c\/sub\u003e\u003cspan\u003e)\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSSGPEPITPO_chemical_structure_100x100.jpg?v=1783323666\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\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\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eYellow 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\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e348.37 g\/mol\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\u003eMelting Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e88-92 °C (lit.)\u003c\/span\u003e\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\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 TPO in a dry and dark side.\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:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acssuschemeng.1c00467\"\u003e\u003cspan\u003eQ. Wu, et al. Flexible Nanocomposite Polymer Electrolyte Based on UV-Cured Polyurethane Acrylate for Lithium Metal Batteries, ACS Sustainable Chem. Eng. 2021, 9, 16, 5631–5641\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acsaem.5c00571\"\u003e\u003cspan\u003eX. Wang, et al. Application of Polymer Electrolytes Prepared by Ultraviolet Polymerization in Various Lithium Metal Battery Systems, ACS Appl. Energy Mater. 2025, 8, 9, 5564–5584\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"SHYCXC","offers":[{"title":"Default Title","offer_id":47952326525158,"sku":"CSSGPEPITPO","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSSGPEPITPO_main.jpg?v=1783323666","url":"https:\/\/echemsupplies.com\/products\/cssgpepitpo","provider":"EChem Supplies","version":"1.0","type":"link"}