Conduction and Electrostriction of Polymers Induced by High Electric Fields

Polymers

Markus Karahka¹ 

[1] Department of Physics and Atmospheric Science, Dalhousie University, Halifax, N.S. B3H 3J5, Canada; E-Mail

关键词: polythiophene;    poly(ethylene glycol);    sulfur polymers;    water polymers;   

DOI  :  10.3390/polym3010051

来源: mdpi

【 摘 要 】

After reviewing the new physics and chemistry in high electrostatic fields we use density functional theory to show that in fields around 1.5 V/Å the bandgap of polythiophene reduces to zero leading to field-induced metallization. In poly(ethylene glycol), on the other hand, such fields lead to giant electrostriction of over 20% in length. Lastly, we give two examples of field-induced polymerization: (1) the closure of sulfur molecules S_n at n = 8 is suppressed remaining linear up to n ∼ 20. (2) This also happens to water which forms linear whiskers up to n ∼ 11.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.