Premium
The chemistry of Pd in cellulose acetate
Author(s) -
Hwang SoonTaik,
Shim IlWun
Publication year - 1992
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1992.070460406
Subject(s) - infrared spectroscopy , chemistry , cellulose , cellulose acetate , catalysis , torr , hydride , hydrogen , metal , inorganic chemistry , dispersion (optics) , atmospheric temperature range , nuclear chemistry , polymer chemistry , organic chemistry , physics , meteorology , optics , thermodynamics
Pd(OAc) 2 complex has been incorporated in cellulose acetate (CA) as a dispersion medium using cosolvent (THF). The interactions Pd(II) complexes and cellulose acetate are examined by infrared spectroscopy and thermal analysis (DSC). The chemical reactivities of Pd–CA films have been investigated by reacting Pd sites with CO, H 2 , O 2 , and C 2 H 4 in the temperature range 25–150°C and at the pressure of less than 1 atm. Two different Pd‐carbonyls and a Pd(O)‐hydride species formed in CA are characterized by their infrared spectra. Treatment of 10 wt % Pd–CA films with hydrogen (600 torr) at 70°C produces small Pd metal particles of ca. 30–60 Å in diameter in CA, which show catalytic activities under mild conditions in the reactions such as hydrogenation of C 2 H 4 and oxidation of CO.