Please use this identifier to cite or link to this item:
|Title:||Stability and degradation of trans-polyphenylacetylene in organic solvents and under light illumination|
|Authors:||Neoh, K.G. |
|Citation:||Neoh, K.G.,Kang, E.T.,Tan, K.L. (1989). Stability and degradation of trans-polyphenylacetylene in organic solvents and under light illumination. Polymer Degradation and Stability 26 (1) : 21-30. ScholarBank@NUS Repository.|
|Abstract:||The stability of a semiconducting photoconductor, trans-polyphenylacetylene (PPA), in organic solvents and under light illumination has been studied. When chloroform is used as solvent, loss of effective conjugation and decrease in molecular weight are detectable after less than an hour. The degradation is slowed down considerably at - 20°C with only minimal changes detected after 48h. On the other hand, the presence of near-UV and short wavelength visible light strongly accelerates the degradation of PPA samples in solution and of solution-cast PPA films. The photoconductivity of solution-cast PPA films decreases rapidly on illumination with near-UV and short wavelength visible light but not with red light. © 1989.|
|Source Title:||Polymer Degradation and Stability|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 2, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.