2 cyano 2 propyl benzodithioate cpb

3-Aminopropanoic acid, 4,4′-azobis(4-cyanopentanoic acid) (ACVA), 2,2′-azobis(2-methylpropionitrile) (AIBN), N,N'-dicyclohexylcarbodiimide (DCC), 4-dimethylaminopyridine (DMAP), methacryloyl chloride, 2-methacryloyloxyethyl phosphorylcholine (MPC), thiazolidine-2-thione (TT) and triethylamine (TEA) were purchased from TCI Europe, Belgium. Ammonium hydroxide, 4-cyano-4-(phenylcarbonothioylthio)pentanoic acid (CPP), 2-cyano-2-propyl benzodithioate (CPB), deferoxamine methanesulphonate salt (DFA), iron(III) chloride hexahydrate, iron(II) chloride tetrahydrate and sodium bicarbonate were purchased from Sigma-Aldrich, Czech Republic. 2,2'-Azobis(4-methoxy-2,4-dimethylvaleronitrile) (V-70) was from FUJIFILM Wako Chemicals Europe, Germany. All solvents were of HPLC grade (obtained from VWR International, Czech Republic) and dried over a layer of activated molecular sieves (4 Å) before use.

The poly(ethylene-co-tetrafluoroethylene) (ETFE) films (Aflex, 25 μm in thickness) were purchased from Asahi Glass Co., Ltd., Tokyo, Japan, and the chloromethylstyrene (CMS) monomer was purchased from AGC Seimi Chemical Co., Ltd., Chigasaki, Japan. The received yellow CMS monomer was purified by alternately washing with sodium hydroxide aqueous solution and water to remove the tert-butylcatechol inhibitor. The purified transparent CMS monomer was kept in a glass bottle containing anhydrous MgSO₄ at 5 °C. The RAFT agent, 2-cyano-2-propyl benzodithioate (CPB), was purchased from Sigma-Aldrich Co., Ltd., Tokyo, Japan and was used as received. The chemical reagents such as acetone, toluene, xylene, as well as tetrahydrofuran (THF, HPLC reagent) and d-chloroform (CDCl₃) were purchased from Wako Pure Chemical Industries, Ltd., Tokyo, Japan and were used without any further treatment.