Morphology of polyaniline in solution processed blends with poly(methyl methacrylate)
- Univ. of California, Santa Barbara, CA (United States)
Using transmission electron microscopy, the authors have investigated the morphology of the polyaniline-camphor sulfonic acid (PANI-CSA) complex in polyblends with poly(methyl methacrylate), PMMA, over a wide range of concentrations. The results demonstrate an interpenetrating network of fibrillar crystalline PANI with the PMMA, consistent with the existance of connected conducting paths at volume fractions as low as 1%. In this dilute regime, the PANI morphology is a tenuous, interconnected fibrillar network with cross-sectional dimension of a few tends of nanometers. At higher volume fractions of PANI, the density of connected paths increases and the morphology appears foam-like with the PANI network surrounding the PMMA. This unusual morphology is the origin of the high electrical conductivities and the excellent optical quality of the PANI/PMMA blends.
- OSTI ID:
- 141761
- Report Number(s):
- CONF-930304-; TRN: 93:003688-1445
- Resource Relation:
- Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993; Other Information: PBD: 1993; Related Information: Is Part Of 205th ACS national meeting; PB: 1951 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Role of dopant counter-anion functionality in polyaniline salts/blends and implications to morphology
Superlocalization of the electronic wave functions in conductive polymer blends at concentrations near the percolation threshold