Accession Number:

ADA210788

Title:

Quartz Crystal Microbalance Studies of Electrochemical Growth of Conducting Polymers

Descriptive Note:

Technical rept. no. 5, Jul 1988-Jun 1989

Corporate Author:

MINNESOTA UNIV MINNEAPOLIS CORROSION RESEARCH CENTER

Personal Author(s):

• Naoi, Katsuhiko
• Lien, Mary M.
• Smyrl, William H.

Report Date:

1989-06-15

Pagination or Media Count:

3.0

Abstract:

In-situ monitoring of the mass change occurring during electrochemical growth of conducting polymers is possible by use of Quartz Crystal Microbalance. The mass change due to polymer formation as well as doping of anions and solvent up-take are monitored with time. Electro-polymerization factors, such as electrolysis modegalvanostatic, potentiostatic, scan, pulse, electrolyte, solvent are compared and the electrochemistry of the resulting film has been examined. QCMPotentiostatic measurements have the advantage of providing simultaneous mass change and charge data. From these, 2 distinct growth phases are observed a fast, charge-efficient growth on substrate and a slower, inefficient growth on pyrrole.

Descriptors:

• *POLYMERIZATION
• *POLYMERS
• *POLYMERIC FILMS
• *GROWTH(GENERAL)
• *ELECTROCHEMISTRY
• PYRROLES
• DOPING
• SYNCHRONISM
• POTENTIOSTATIC TECHNIQUES
• ELECTROLYTES
• ANIONS
• STATIC ELECTRICITY
• PHASE
• MASS
• MONITORING
• ELECTROLYSIS
• REPRINTS
• MEASUREMENT

Subject Categories:

• Industrial Chemistry and Chemical Processing
• Physical Chemistry
• Polymer Chemistry
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE