N heptane

The ESBR and RAFT ESBR were used after coagulating latex with NaCl and H₂SO₄. Carbon black N330 (OCI, Korea) was used as a filler when manufacturing the carbon black-filled compound. Zinc oxide (ZnO) and stearic acid (CH₃(CH₂)₁₆COOH) as additives, N-(1,3-dimethybutyl)-N’-phenyl-phenylenediamine (6PPD) as an antioxidant, sulfur, N-cyclohexyl benzothiazyl sulfenamide (CBS), and diphenyl guanidine (DPG) as vulcanization agents, were purchased from Merck, Kenilworth, NJ, USA.
Tetrahydrofuran (THF, Daejung, Korea) and n-hexane (Daejung, Busan, Korea) were used in order to remove organics from the vulcanizates prior to the swelling experiments. Toluene (Daejung, Korea) was used to confirm the crosslink density. Piperidine (Daejung, Korea), propane-2-thiol (Acros Organics, Waltham, MA, USA), and n-heptane (Samchun, Seoul, Korea) were used to destroy the vulcanizates structure.

Ethyl butyrate, butyl butyrate, hexyl butyrate, and butyric acid were purchased from Tokyo Chemical Industry. n-Octyl butyrate was purchased from Thermo Fisher Scientific. Molecular sieve 4 Å, ethanol, 1-hexanol, 1-octanol, 1-decanol, p-nitrophenyl caprylate (pNPC), and glutaraldehyde solution were purchased from Sigma-Aldrich. 1-Butanol, n-hexane, n-heptane, cyclohexane, and isooctane were purchased from Samchun. Methacrylate-divinylbenzene (MA-DVB) resin was purchased from GenoFocus.