Loading...
Please wait, while we are loading the content...
Similar Documents
Neutron scattering studies of the ferroelectric transition in P (VDF-TrFE) copolymers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Legrand, Jean Francois Frick, Bernhard Meurer, Bernard Schmidt, Victor Hugo Bée, Marc Lajzerowicz, Janine |
| Copyright Year | 1990 |
| Abstract | Abstract In P(VDF-TrFE) random copolymers with compositions from 60/40 to 80/20 mol%, the ferroelectric phase transition exhibits a strong first order character and is accompanied by a large expansion of the crystal lattice. In the ferroelectric structure, the polymer chains have an all-trans conformation and are close-packed parallel to one another in a pseudo-hexagonal lattice. According to the m2m symmetry, the spontaneous polarization Py is perpendicular to the chain axis 2. In the paraelectric phase, the structure is disordered : the chains undergo continuous conformational changes, they have a statistical Cm symmetry and the expanded lattice is hexagonal (6/m point group) |
| Starting Page | 321 |
| Ending Page | 326 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1080/00150199008211433 |
| Volume Number | 109 |
| Alternate Webpage(s) | https://scholarworks.montana.edu/xmlui/bitstream/handle/1/9670/VHSchmidt_Ferroelectrics_109_1_A1b.pdf;jsessionid=1AF23FBEA7299BAF5BADEBC199196CF1?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
