Synthesis and properties of poly(butylacrylate-co-butylmethacrylate) doped with metal clusters

✍ Scribed by Galo Cárdenas T.; Elizabeth Salgado C.; Juan Morales; Hugo Soto Z.

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 245 KB
• Volume: 73
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19990815)73:7<1239::aid-app18>3.0.co;2-j

✦ Synopsis

Butylacrylate/butylmethacrylate (BABMA) colloids were obtained by cocondensation at 77 K of the monomers with several metals such as Au, Pd, Ag, Cu, Cd, Ga, Ge, In, Sn, Sb, Bi, and Zn. The relative stability of the comonomer metal colloids at room temperature was measured. Au-, Pd-, Cd-, and Ge-BABMA colloids are the most stable. The average particle size of these clusters dispersed in the monomers ranges between 19 and 72 Å. On the other hand, the metal clusters in the copolymers range from 32 to 126 Å. The colloids were polymerized with 2,2Ј-azoisobutyronitrile and dibenzoyl peroxide using 0.1, 0.25, 0.5, and 1.0 mol % initiator at 65°C to obtain poly(butylacrylate-co-butylmethacrylate). The doped copolymers yields are over 52% w/w in most of the MW fractions The viscosity average molecular weights (M ¯v) range between 370,000 and 970,000 g/mol for the highest MW fraction. The copolymers were characterized by means of thermogravimetry, Fourier transform IR, elemental analysis, and conductivity measurements.