Synthesis and characterization of metal ion recognition induced conjugated polymers

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:539899

Wang, Bing ^[1]; Wasielewski, M R ^[1]

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1. Argonne National Lab., IL (United States)

The synthesis and metal ion responsive properties of two 2,2{prime}-bipyridyl-phenylene-vinylene based polymers will be presented. These polymers are designed to be partially conjugated in their initial state and fully conjugated when exposed to metal ions so that such ion induced conjugation enhancement can be transduced into a measurable signal. The synthesis of the monomers and the polymers were accomplished by Wittig type reactions between oligo-phenylene-vinylene derived aldehydes and 5,5{prime}- substituted 2,2{prime}-bipyridyl phosphonium salts. It is found that these polymers exhibit highly ionochromic effects on a wide variety of transition and main group metal ions excluding metal ions of alkali and earth alkaline groups. The most striking observation perhaps is the highly specific palladium ion sensing by the polymers.

• OSTI ID: 539899
• Report Number(s): CONF-960807--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALDEHYDES
DETECTION
MONOMERS
ORGANIC POLYMERS
PALLADIUM
SALTS
SYNTHESIS