Dms a15

Monomethacryloxypropyl-terminated polydimethylsiloxane macromonomers (MCR-M11: M_n ~ 1000 g/mol, $n_{sc}$ 14, and MCR-M17: M_n ~ 5000 g/mol, $n_{sc}$ 70) were obtained from Gelest and purified using basic alumina columns to remove inhibitor. Aminopropyl terminated polydimethylsiloxane (DMS-A15, M_n~3,000 g/mol), trimethylsiloxy terminated polydimethylsiloxane (DMS-T72, M_n ~ 500,000 g/mol), and chlorine terminated polydimethylsiloxane (DMS-K05, M_n ~ 425–650 g/mol) were purchased from Gelest and used as received. PEGMA macromonomer (M_n ~ 500 g/mol) was obtained from Sigma-Aldrich and purified using basic alumina columns to remove inhibitor. Ethylene bis(2-bromoisobutyrate) (2f-BiB), tris[2-(dimethylamino)ethyl]amine (Me6TREN), Copper(I) chloride (CuCl), Copper(I) bromide (CuBr), triethylamine (TEA), methanesulfonyl chloride, tris(hydroxypropyl)phosphine (THPP), Sodium azide, isophorone diisocyanate (IPDI), and Tin(II) 2-ethylhexanoate, furfuryl isocyanate, maleic anhydride, furan, ethanolamine, isocyanatoethyl methacrylate were purchased from Sigma-Aldrich and used as received. Toluene, anisole, isopropanol, dichloromethane (DCM), N,N-dimethylformamide (DMF), and tetrahydrofuran (THF) were purchased from VWR Chemicals and used as received.