Hoan Minh Tran*, Lan Ngoc Tan Phan*, Thang Van Le**,***, Thuy Thuy Truong*, Tam Huu Nguyen*, Khuong Tung Truong*, Le-Thu T. Nguyen*,**, Mai Thanh Phong****, and Ha Tran Nguyen*,**,†
*National Key Laboratory of Polymer and Composite Materials, University of Technology, Vietnam National University – Ho Chi Minh City (VNU–HCM), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
**Faculty of Materials Technology, Ho Chi Minh City University of Technology, Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
***Materials Technology Key Laboratory (Mtlab), Ho Chi Minh City University of Technology, Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
****Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
A novel organic photocatalyst, 4-(10H-phenothiazin-10-yl)-N,N-diphenylaniline (PDPA) has been successfully synthesized from triphenylamine and phenothiazine moiety via Buchwald-Hartwig C-N coupling. The chemical structure of catalyst was characterized via proton nuclear magnetic resonance (1H NMR) and the optical properties were investigated via UV-vis spectroscopy. The PDPA has been applied as an organic photocatalyst for metal free atom transfer radical polymerization (O-ATRP). The well-controlled molecular weights of polymethacrylates have been obtained with high yield of 95% and narrow polydispersity index (Đ).
Keywords: phenothiazine, organic photocatalyst, metal-free atom transfer radical polymerization, Buchwald-Hartwig C-N coupling, methacrylate monomers
2019; 43(4): 496-502
Published online Jul 25, 2019
*National Key Laboratory of Polymer and Composite Materials, University of Technology, Vietnam National University – Ho Chi Minh City (VNU–HCM), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
**Faculty of Materials Technology, Ho Chi Minh City University of Technology, Vietnam National University, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam