Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Atsuko Taira"'
Publikováno v:
Tetrahedron. 63:8478-8484
The ring-opening polymerizations (ROPs) of lactones catalyzed by rare-earth metal trifluoromethanesulfonates (triflates) (RE(OTf) 3 ) were examined. Among various complexes, scandium triflate (Sc(OTf) 3 ) emerged as an effective catalyst in toluene.
Publikováno v:
Macromolecules. 33:1497-1499
Publikováno v:
Japanese circulation journal. 52(5)
Ninety-one patients with true and dissecting aortic aneurysm were reviewed. They ranged in age from 65 to 87 years (mean 71 years). Forty-eight patients were diagnosed with abdominal aortic aneurysm, 21 patients with thoracic aortic aneurysm and 22 p