2 methoxyethyl acrylate mea

Tris(2-(dimethylamino)ethyl)amine (Me₆TREN, 97%) was obtained from Sigma-Aldrich (St. Louis, MO, USA). Copper bromide (CuBr, 95.0%) was supplied by Kishida Chemical (Osaka, Japan). Ethanol (99.5%), tetrahydrofuran (THF, 99.5%), and cetylpyridinium chloride (90%) were purchased from Fujifilm Wako Pure Chemical (Osaka, Japan). All chemicals were used as received; 2-Methoxyethyl acrylate (MEA, 98.0%) from Fujifilm Wako Pure Chemical (Osaka, Japan) was treated with an inhibitor-remover prepacked column from Sigma-Aldrich (St. Louis, MO, USA) prior to use. PEO (MW = 500,000 g/mol) was purchased from Fujifilm Wako Pure Chemical (Osaka, Japan). PEO-based macroinitiator (PEO-Br) was prepared and purified in accordance with the literature [28 (link)]. Number average molecular weight (M_n(GPC)) and molecular weight distribution (M_w/M_n) estimated from gel-permeation chromatography (GPC) for PEO-Br were 4.64 × 10⁵ g/mol and 1.23, respectively. The degree of polymerization (DP) for PEO-Br was 11,340. Pyrene (97%) from Fujifilm Wako Pure Chemical (Osaka, Japan) was recrystallized from mEthanol. Water was purified using an ion-exchange column system.

2-Methoxyethyl acrylate (MEA, >98%), which had been obtained from Wako Pure Chemical (Osaka, Japan), was removed with a Sigma-Aldrich (St. Louis, MI, USA) inhibitor remover column. 2-Methacryloyloxyethyl phosphorylcholine (MPC), which had been obtained from NOF Corp. (Tokyo, Japan), was purified using a previously reported method [33 (link)]. 2′-Azobis(4-methoxy-2,4-dimethylvaleronitrile) (V-70, >95%), which had been purchased from Wako Pure Chemical (Osaka, Japan), was used as received without any further purification. The pyrene (97%) purchased from Wako Pure Chemical was purified via recrystallization using methanol. Methanol was dried using 4Å molecular sieves and purified via distillation. Water was purified with an ion-exchange column system.