{
    "protocol": "The synthesis of hydrophilic polymers with functional groups involves the blending of polyhedral oligomeric silsesquioxane-poly(N-(2-(methacryloyloxy)ethyl)-N,N-dimethylbutan ammonium bromide-co-2-aminoethyl methacrylate hydrochloride) [POSS-P(QAC-co-AEMA)] and poly(N-hydroxyethyl acrylamide-co-glycidyl methacrylate) [P(HEAA-co-GMA)]. Incorporation of AEMA and GMA is performed to crosslink the two random copolymers. A small quantity of 1,3,5-triformylbenzene (TFB) is added as a co-crosslinker to further react with the amino and hydroxyl groups in the copolymers, as well as amino-modified glass substrates, forming a chemically crosslinked stable system. The specific compositions for the coatings include varying amounts of POSS-P(QAC-co-AEMA), P(HEAA-co-GMA), and TFB with specified mass ratios to achieve optimal blending for antifogging and antibacterial properties.Synthesis of POSS-P(QAC-co-AEMA) and P(HEAA-co-GMA) Copolymers involves the following steps: 1. Prepare QAC by quaternizing 2-(dimethylamino)ethyl methacrylate (DMAEMA) with 1-bromobutane. 2. Modify the RAFT agent CPADB with aminopropylisobutyl polyhedral oligomeric silsesquioxane (POSS-NH2) to obtain POSS-CPADB. 3. Synthesize POSS-P(QAC-co-AEMA) copolymers via reversible addition−fragmentation chain transfer (RAFT) polymerization. 4. Synthesize P(HEAA-co-GMA) copolymers using free radical polymerization. The copolymers are characterized by proton nuclear magnetic resonance (1H NMR) spectroscopy and gel permeation chromatography (GPC).Materials and synthesis procedures of QAC, POSS-CPADB, POSS-P(QAC-co-AEMA), and P(HEAA-co-GMA) are discussed along with characterizations by $^{1}\\mathrm{H}$ NMR and GPC."
}