{"product_id":"cssgpepiitx","title":"Photoinitiator ITX (2-, or 4-Isopropylthioxanthone) for Solid-State \u0026 Gel Polymer Electrolytes (GPEs), 50-200 g\/bottle, CSSGPEPIITX","description":"\u003cp\u003eITX (2-Isopropylthioxanthone) (C16H14OS) is a high-efficiency Norrish Type II photoinitiator and photosensitizer of the thioxanthone family. In advanced battery research, ITX is utilized to sensitize Gel Polymer Electrolytes (GPEs) and solid-state polymer electrolytes, enabling deep-section UV-curing and efficient photon absorption when paired with hydrogen donors or amine synergists.\u003c\/p\u003e\n\u003cp\u003eIts main features are: (1) \u003cstrong\u003eType II Photochemical Mechanism\u003c\/strong\u003e: Unlike Type I initiators that undergo unimolecular cleavage, ITX absorbs near-UV light to enter an excited triplet state, subsequently abstracting a hydrogen atom from a co-initiator (such as an amine synergist) to generate active initiating free radicals via a bimolecular pathway. (2) \u003cstrong\u003eExtended UV-A Absorption Maxima\u003c\/strong\u003e: Features strong absorption bands spanning the near-UV and violet spectrum (with maxima at approximately 259 nm and 383 nm), making it highly responsive to modern UV-A LED curing sources. (3) \u003cstrong\u003ePhotosensitization Capability\u003c\/strong\u003e: Acts as an optical antenna that transfers energy or abstracts hydrogens to boost the reactivity of sluggish co-initiators or extend curing depth through pigmented or highly scattering separator matrices. (4) \u003cstrong\u003eSolubility\u003c\/strong\u003e: Supplied as a light-yellow crystalline powder with excellent solubility in aprotic carbonate solvents (EC\/DEC\/DMC\/PC) and liquid monomer blends.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003eIts main functional roles in GPEs synthesis are: (1) \u003cstrong\u003eDeep-Section Curing of Thick Separators \u0026amp; Electrodes\u003c\/strong\u003e: Because ITX absorbs strongly at longer, highly penetrating wavelengths (~ 383 nm), it successfully drives radical generation deep within thick, porous separator membranes (such as glass fiber or high-loading composite electrodes) where short-wavelength UV light is filtered out. (2) \u003cstrong\u003eSynergistic Bimolecular Initiation\u003c\/strong\u003e: Formulated alongside a tertiary amine co-initiator, ITX provides precise control over gelation kinetics, preventing premature surface-skinning and ensuring uniform 3D network polymerization throughout the entire electrolyte volume. (3) \u003cstrong\u003eEnhanced Monomer Conversion\u003c\/strong\u003e: The photosensitizing action accelerates radical propagation rates, achieving high conversion yields of structural crosslinkers (such as TPGDA, HDDA, or HDDMA) to permanently immobilize liquid electrolytes and eliminate leakage risks.\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ctable style=\"width: 100%; height: 377.637px;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 28.0702%; height: 35.6px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCSSGPEPIITX (C-SSGPE-PIITX)\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: 28.0702%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e5495-84-1 \u0026amp; 83846-86-0 (mixture of 2- and 4-Isopropylthioxanthone)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 137px;\"\u003e\n\u003ctd style=\"width: 28.0702%; height: 137px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 137px;\"\u003e\n\u003cp\u003e\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\"\u003eC₁₆H₁₄OS\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSSGPEPIITX_structure_160x160.jpg?v=1793556755\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.0702%;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%;\"\u003e\n\u003cp\u003e\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\"\u003e254.3 g\/mol\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.0702%;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%;\"\u003e\n\u003cp\u003e\u003cspan class=\"iNqyIf\" data-sfc-cp=\"\" data-sfc-root=\"c\"\u003eSlight yellow 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: 28.0702%; height: 35.6px;\"\u003e\u003cem\u003eMelt Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e60-67 ℃\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: 28.0702%; height: 35.6px;\"\u003e\u003cem\u003eAbsorption Wavelength\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e255 nm and 384 nm (in methanol solution)\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: 28.0702%; height: 26.0375px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.6374%; height: 26.0375px;\"\u003e50 g, 100 g, and 200 g\/bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please try to store the photoinitiator ITX power or solution in a dry place and dark 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:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1002\/marc.202200327\"\u003e\u003cspan\u003eZ. Chen, et al. Ultraviolet In Situ Polymerized Binders with Polysulfide-Trapping Properties for Long-Cycle-Life Lithium–Sulfur Batteries, Macro-Molecular Rapid Communications, 2022, 43, 2200327\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0167732225013662\"\u003eS. A. H. Moradi, et al. Impact of lithium ion substitution in nano-clay on the electrochemical performance of PMMA gel polymer electrolytes in lithium-ion batteries, Journal of Molecular Liquids, 2025, 435, 128189\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"SHYCXC","offers":[{"title":"50 g","offer_id":67941099372774,"sku":"CSSGPEPIITX50","price":79.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":67941099405542,"sku":"CSSGPEPIITX100","price":139.0,"currency_code":"USD","in_stock":true},{"title":"200 g","offer_id":67941099438310,"sku":"CSSGPEPIITX200","price":239.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CSSGPEPIITX_main.jpg?v=1793556755","url":"https:\/\/echemsupplies.com\/products\/cssgpepiitx","provider":"EChem Supplies","version":"1.0","type":"link"}