Thin films were prepared from the following polymers and anti-octadecaborane(22) and its derivatives. Polystyrene with molecular weight 350 000 g/mol (PS350; Mw ~ 350,000, Mn ~ 170,000) and 35,000 g/mol (PS35; Mw ~ 35,000), poly(N-ethyl-2-vinylcarbazole) (PVK; Mw ~ 990,000), and poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV; Mn 40,000–70,000) were purchased from Sigma Aldrich. A high-molecular-weight polymer poly [1-phenyl-2-[p-(trimethylsilyl)diphenyl]acetylene] (PTMSDPA, Mw ~ 106) was prepared at the Faculty of Science of the Charles University in Prague according to the procedure described in [35 (link)]. Poly(dimethylsilane-methylphenylsilane) (PDMSi-MPSi; Mw ~ 82,000, Mn ~ 18,000) was obtained from Fluorochem Ltd., and polycarbonate Makrolon (PC, Mw ~ 58,000, Mn ~ 25,000) was obtained from Bayer. Octadecaborane anti-B18H22 (B, M = 216.58 g/mol) and its tetra-alkylated derivatives 3,3′,4,4′-Et4-anti-B18H18 (BEt, M = 328.66 g/mol) and 3,3′,4,4′-Me4-anti-B18H18 (BMe; M = 272.62 g/mol) were synthesized at the Institute of Inorganic Chemistry of the AS CR [25 (link)].
Our 1-chloropentane (99%), toluene (p.a.), and cyclohexane anhydrous (99.5%) stock was purchased from Sigma-Aldrich. Chloroform (stabilized with 2-methyl-2-butene, 99.8%) was obtained from Avantor. All these solvents were used for the preparation of solutions for spin coating.
Our 1-chloropentane (99%), toluene (p.a.), and cyclohexane anhydrous (99.5%) stock was purchased from Sigma-Aldrich. Chloroform (stabilized with 2-methyl-2-butene, 99.8%) was obtained from Avantor. All these solvents were used for the preparation of solutions for spin coating.
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