{"product_id":"cgpemhema","title":"HEMA {2-Hydroxyethyl methacrylate)} as Monomer for Gel Polymer Electrolytes (GPEs), 100 g\/bottle, CGPEMHEMA","description":"\u003cp\u003e2-Hydroxyethyl methacrylate (HEMA) is a highly versatile functional monomer widely investigated for synthesizing gel polymer electrolytes (GPEs) in next-generation batteries (including advanced lithium and sodium-ion systems). Its structure—containing a polymerizable methacrylate group at one end and a hydrophilic, polar hydroxyl group at the other—provides unique chemical and mechanical tuning capabilities.\u003c\/p\u003e\n\u003cp\u003eThe chemical formula of HEMA is H2C=C(CH3)CO2CH2CH2OH. When polymerized into poly(HEMA) or copolymerized with other monomers, it introduces two primary functional groups into the polymer backbone: (1) \u003cstrong\u003eCarbonyl (C=O) and Ester (C-O-C) Groups\u003c\/strong\u003e: The lone pairs on the oxygen atoms provide Lewis-base active sites that coordinate with migrating cations (Li+ or Na+). This helps dissociate the metal salt (e.g., LiTFSI, NaPF6) and facilitates hopping-type ion transport. (2) \u003cstrong\u003eTerminal Hydroxyl (-OH) Groups\u003c\/strong\u003e: The polar hydroxyl groups significantly enhance the dielectric constant of the polymer matrix. This assists in further salt dissociation and creates a highly hydrophilic\/polar network capable of trapping large volumes of organic carbonate or ionic liquid plasticizers without leaking.\u003c\/p\u003e\n\u003cp\u003eOne of the most compelling reasons to use HEMA in GPE design is its compatibility with in-situ fabrication. (1) \u003cstrong\u003eLow Viscosity Injection\u003c\/strong\u003e: The HEMA monomer mixture, along with a liquid electrolyte (salt + solvent) and a radical initiator (thermal or photo), forms an ultra-low viscosity liquid precursor. This liquid can be easily injected into a compiled cell (button cell or pouch cell), ensuring perfect wetting of the porous separator and complete infiltration into the tortuous pores of the cathode and anode. (2) \u003cstrong\u003eRapid Curing\u003c\/strong\u003e: Upon exposure to heat (e.g., using AIBN as a thermal initiator) or UV light (e.g., using HMPP or Irgacure series), the C=C double bonds rapidly undergo free-radical addition polymerization. This transforms the liquid into a quasi-solid gel in-situ, establishing an intimate, continuous, and low-resistance interface with the electrodes.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 311.725px;\"\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\u003eCGPEMHEMA (C-GPE-M-HEMA)\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\u003e868-77-9\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 60px;\"\u003e\n\u003ctd style=\"width: 28.0576%; height: 60px;\"\u003e\u003cem\u003eChemical Formula\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 60px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003e=C(CH\u003c\/span\u003e\u003csub\u003e3\u003c\/sub\u003e\u003cspan\u003e)COOCH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eCH\u003c\/span\u003e\u003csub\u003e2\u003c\/sub\u003e\u003cspan\u003eOH\u003c\/span\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\/CGPEMHEMA_chemical_structure_100x100.jpg?v=1783316544\"\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\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99%\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 style=\"font-size: 0.875rem;\"\u003e130.14 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\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e1.073 g\/mL at 25 °C (lit.)\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\u003eBoling Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 71.5827%; height: 35.6px;\"\u003e\n\u003cp\u003e67 °C\/3.5 mmHg (lit.)\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)\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 HEMA 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\u003cspan\u003e\u003ca href=\"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/abs\/10.1002\/cssc.202100141\"\u003eJ. Wang, et al. Flame-Retardant, Highly Conductive, and Low-Temperature-Resistant Organic Gel Electrolyte for High-Performance All-Solid Supercapacitors, ChemSusChem, 2021, 14, 2056-2066\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/chemistry-europe.onlinelibrary.wiley.com\/doi\/abs\/10.1002\/celc.201700586\"\u003e\u003cspan\u003eH. Qin, et al. Chemically Cross-Linked Poly(2-hydroxyethyl methacrylate)-Supported Deep Eutectic Solvent Gel Electrolytes for Eco-Friendly Supercapacitors, ChemElectroChem, 2017, 4, 2556-2562\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"Default Title","offer_id":47952019718374,"sku":"CGPEMHEMA","price":79.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CGPEMHEMA_main.jpg?v=1783316544","url":"https:\/\/echemsupplies.com\/products\/cgpemhema","provider":"EChem Supplies","version":"1.0","type":"link"}