Бис(2,2,6,6-тетраметил-4-пиперидил)себацинат

Химические свойства

White solid

Использование

T770 (Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate) can be used as a hindered amine UV stabilizer in plastic materials. It can be used in the manufacturing and packaging of pharmaceutical products. Titanium oxide(TiO₂)/T770 may be used in amine induced light stabilizers in the synthesis of recyclable water-based polyurethane with poly(oxytetramethylene)glycol (PTMG).

Общее описание

Bis(2,2,6,6-tetramethyl-4-piperidyl) (T770) sebacate is a low molecular weight ultra violet (UV) hindered amine light stabilizer (HALS) made up of nitroxyl radicals. It acts as a heat controller that can react with phenolic antioxidants incorporated in polymers.

Биологическая активность

Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate(BTMPS; Tinuvin 770) is a sterically hindered amine light and radiation stabilizer produced by Ciba-Geigy, widely used in plastics, that inhibits nicotinic acetylcholine receptors expressed in Xenopus oocytes in a use-dependent manner. BTMPS is a symmetrical conjugate of methylated piperidines that are potent inhibitors on their own, but the kinetics of inhibition and recovery are faster than BTMPS. For neuronal nicotinic receptor subunit combinations, the time constant for recovery from inhibition by BTMPS is approximately 1 to 4 h. Muscle-type receptors (α 1-, β 1-γ, and δ subunits) are also inhibited by BTMPS, but control responses are fully restored after a 5 min washout. Hybrids of muscle and neuronal subunits containing neuronal β subunits (α 1-, β 2-, γ, and δ and α-1-, β 4-, and γ-δ) blocked in a more irreversible manner than normal muscle-type receptors, suggesting an interaction between BTMPS and neuronal acetylcholine receptor β subunits. Glutamate receptors were not inhibited by BTMPS. Exposure to agonist solutions from certain plastic syringes that release BTMPS also resulted in a use-dependent inhibition of nicotinic receptors.^[1]