2 methylthio ethanol

2-Bromoisobutyric acid (98%), 2-bromoethanol (95%), 2-(dimethylamino)ethyl methacrylate (DMAEMA, 98%), poly-(ethylene glycol) methyl ether methacrylate (OEGMA, MW = 500), methacrylic acid (99%), N-(3-(dimethylamino)propyl)-N′-ethylcarbodiimide hydrochloride (EDC, ≥99%), N,N-dimethylamino pyridine (DMAP, ≥99%), copper bromide (≥99.99%), ascorbic acid, (AA, ≥99%) were purchased from Sigma-Aldrich. 2-(Methylthio)-ethanol (≥99%) was purchased from Alfa Aesar. Hydrogen peroxide solution (30%) was purchased from Fisher Scientific. All methacrylate monomers were passed through basic alumina columns before use. Tris(2-pyridylmethyl)amine (TPMA) was synthesized according to previous procedures.⁷⁶ All solvents and other chemicals were of reagent quality and were used as received unless special treatments discussed below were applied.

2-(Methylthio)ethanol (≥99%) was purchased from Alfa Aesar. Hydrogen peroxide solution (30%) was purchased from Fisher Scientific. Acrylic acid (≥99%), tin(II) 2-ethylhexanoate (Sn^II(EH)₂, ≥95%), methyl acrylate (≥99%), n-butyl acrylate (≥99%), poly(ethylene glycol) methyl ether acrylate (OEGA, average M_n = 480), N-(3-(dimethylamino)propyl)-N′-ethylcarbodiimide hydrochloride (EDC, ≥99%), N,N-dimethylamino pyridine (DMAP, ≥99%), copper bromide (≥99.99%), ascorbic acid, (AA, ≥99%), divinylbenzene (DVB, technical grade, 80%), and ethyl α-bromoiso-butyrate (EBiB, 98%) were purchased from Sigma-Aldrich. Acrylic acid was distilled under vacuum before use. All acrylate monomers were passed through basic alumina columns before use. Tris(2-pyridylmethyl)amine (TPMA) was synthesized according to previous procedures.^{41 (link)} All solvents and other chemicals are of reagent quality and were used as received unless special treatments discussed below were applied.