Hexylmethacrylate

N-vinylpyrrolidone (99%, VP, Alfa Aesar) was distilled in vacuum to remove the NaOH inhibitor. Triethylene glycol dimethacrylate (95%, TEGDM, Aldrich, St. Louis, MO, USA) and hexylmethacrylate (HMA) were used without additional purification. 2,2′-Azo-bis-isobutyronitrile (AIBN) purified by recrystallization from ethanol was used as the initiator of radical polymerization. We used toluene (analytical grade) and n-hexane (reagent grade).
D-α-tocopherol (Figure 1a) was purchased from Alfa Aesar. Aminoguanidine, sodium azide, thiobarbituric acid (TBA), trichloroacetic acid (TCA), tert-butyl hydroperoxide (TBHP), and luminol were purchased from Sigma (St. Louis, MO, USA). Bovine serum albumin (BSA) (fraction V) and D-glucose were purchased from Life Science (USA). Folin’s reagent was purchased from Applichem (Darmstadt, Germany).

Epoxy resin (diglycidyl ether of bisphenol-A based E-51 epoxy with an epoxide equivalent weight of 192) was purchased from Shanghai Resin Factory Co., China. The qualitative characteristics of epoxy resin are presented in Table 1. The hardener was composed of the methyl-hexahydro phthalic anhydride (MHHPA) and benzyl dimethylamine catalyst (BDA), with a weight ratio of 40:1. MHHPA and BDA were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd. The qualitative characteristics of the hardener are presented in Table 2. The resin to hardener ratio equaled 1:0.82 for all nanocomposites. The pristine multi-wall carbon nanotubes, with a diameter of 15–20 nm and a length of 0.5–2 μm, were purchased from Chengdu Organic Chemicals Co. Ltd. The qualitative characteristics of MWCNTs are presented in Table 3. Hexyl methacrylate (HMA ≧ 98.5%) and glycidyl methacrylate (GMA, 98%), both from Aldrich, St. Louis, MO, USA were distilled before use. According to a previously published report [23 (link)], 3-azidopropyl 4-cyano-4-((phenylcarbonothioyl)thio) butanoate (Azido-CTAs) was synthesized. Before use, 2,2′-azobis-(2-methylpropionitrile) (AIBN, 98% from Aldrich, St. Louis, MO, USA) was recrystallized from ethanol twice and dried at room temperature under a vacuum. All other chemical reagents were used as received.

Chitosan (M_w = 200 kDa, degree of deacetylation 83%) was purchased from Bioprogress (Russia). Glacial acetic acid (p.a.), methanol (c.p.), ammonia (25% water solution, p.a.) methyl ethyl ketone (c.p.), and diethylamine (pure) were purchased from Vekton (Russia). Glutaric aldehyde (GA, 25% aqueous solution) was purchased from Acros Organics. Glycidyl methacrylate (GMA, 98%), hexyl methacrylate (HeMA, 97%), decyl methacrylate (DMA, 96%), lauryl methacrylate (LMA, 96%), stearyl methacrylate (SMA, 97%), and azobisisobutyronitrile (AIBN, 98%) were purchased from Aldrich. Tetradecyl methacrylate (TDMA, 96%,) was purchased from J&K Scientific, Beijing, China. Synthetic motor oil (viscosity grade 5W30) produced by Total Quartz, winter diesel fuel produced by Rosneft, light oil (ρ = 0.803 g/cm³), distilled water, and deionized water were used.