Poly(N,N'-Bis[4-(2,2,6,6-tetramethylpiperidinyl)]-1,6-hexanediamine) Singlet oxygen

Ballardini, R.; Beggiato, G.; Bortolus, P.; Faucitano, A.; Buttafava, A.; Gratani, F.
Polym. Degrad. Stab. 7, 41-53 (1984)

Reaction: Poly(N,N'-bis[4-(2,2,6,6-tetramethylpiperidinyl)]-1,6-hexanediamine) + ¹O₂^* ® products and/or physical quenching
Solvent: Benzene, 80%, Methanol, 20%

k = 3.6 × 10⁷(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 694 nm

Photosensitizer = Methylene Blue; Indicator = 1,3-Diphenylisobenzofuran; k calcd. for repeating unit.