Bis 2 methacryloyloxy ethyl phosphate

Sodium 4-vinylbenzenesulfonate (≥ 90%), [3-(methacryloylamino) propyl] trimethylammonium chloride solution (50 wt. % in H₂O), bis[2-(methacryloyloxy)ethyl] phosphate, ammonium persulfate (98%), direct blue 71, sodium chloride (NaCl), and lead(II) nitrate (Pb(NO₃)₂) were purchased from Sigma-Aldrich and used as received.

1,3-Di(9H-carbazol-9-yl)benzene
(mCP, 98%) was purchased from Aaron Chemicals. Hafnium(IV) chloride
(99%) was purchased from Acros Organics. Bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrPic) was purchased from American
Dye Source. Ethanol was purchased from Decon Laboratories. EJ-550
optical grade silicone grease was purchased from Eljen. Trifluoroacetic
acid was purchased from EMD Millipore Corporation. Acetone (Certified
ACS), hydrogen peroxide (Certified ACS, 30%), sulfuric acid (Certified
ACS Plus), and toluene (Certified ACS) were purchased from Fisher
Chemical. Bis(2-(methacryloyloxy)ethyl) phosphate, 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane (Luperox-231,
92%), cyclohexane (99.9%), divinylbenzene (technical grade, 80%),
inhibitor removers (Al₂O₃), methylstyrene (60% meta, 40% para, and 1% ortho, 99%), and oleylamine (technical grade, 70%) were purchased from
Sigma-Aldrich. 9,9-Dimethyl-9H-fluorene (MF, 97%)
was purchased from Synthonix. Chloroform (99.8%) was purchased from
Thermo Scientific. Trichloro(1H,1H,2H,2H-tridecafluoro-n-octyl)silane was purchased from Tokyo Chemical Industry. Methylstyrene
and divinylbenzene were purified by a column packed with inhibitor
removers to remove tert-butylcatechol, then degassed
before use. Luperox-231 was also degassed before use. All other materials
were used as received.