. Author manuscript; available in PMC: 2020 Jan 8.

Published in final edited form as: Macromolecules. 2018 Dec 20;52(1):236–248. doi: 10.1021/acs.macromol.8b02517

Table 3.

Inhibition Periods of PET-RAFT in the Presence of Oxygen and Photocatalyst Properties^a

		Φ_T^55,64–68	Φ_Δ^55,64–68	O₂ inhibition period (min)
entry	PC	reported	reported	measured
1	RB	0.76–0.86	0.75–0.79	23
2	EB	0.62–0.69	0.62–0.63	41
3	PB	0.40	0.59–0.65	47
4	EY	0.28–0.32	0.39–0.57	90

Φ_T: triplet quantum yield, i.e., the quantum yield of the lowest triplet excited state of PC. Φ_Δ: singlet oxygen quantum yield. O₂ inhibition period: the length of retardation time caused by the presence of oxygen, i.e., the length of the right shift along the time axis between kinetics of the deoxygenated and nondeoxygenated sample where k_p^app stays constant. The O₂ inhibition periods were determined by measuring the time delay between kinetics in the absence/presence of oxygen in each dye-catalyzed PET-RAFT system (Figure 2A-D).