Measuring Structural Inhomogeneity of Conjugated Polymer at High Pressures up to 30 GPa
(2013) In Macromolecules 46(20). p.8284-8288- Abstract
- We present X-ray scattering data from helical poly[9,9-bis(2-ethylhexyl)-fluorene-2,7-diyl] by mapping the sample with 10 mu m spatial resolution at pressures up to 31 GPa. Neon is used as pressure transmitting medium. Reduction of torsion angle between adjacent repeats is observed during compression and found to be reversible upon decompression. Chain conformation does not depend on lateral position of sample in the pressure range from 1 to 7 GPa but depends significantly when pressure is increased from 7 to 31 GPa. Crystallite orientation does not depend on pressure or lateral position. The radiation damage is studied optically ex situ and proved to be insignificant.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4212763
- author
- Knaapila, Matti ; Torkkeli, Mika ; Konopkova, Zuzana ; Haase, Dörthe LU ; Liermann, Hanns-Peter ; Scherf, Ullrich and Guha, Suchismita
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Macromolecules
- volume
- 46
- issue
- 20
- pages
- 8284 - 8288
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000326209400023
- scopus:84886608672
- ISSN
- 0024-9297
- DOI
- 10.1021/ma401661t
- language
- English
- LU publication?
- yes
- id
- 8111d06f-ba99-4826-bf96-f33d18adb7f9 (old id 4212763)
- date added to LUP
- 2016-04-01 09:52:10
- date last changed
- 2022-01-25 17:24:27
@article{8111d06f-ba99-4826-bf96-f33d18adb7f9, abstract = {{We present X-ray scattering data from helical poly[9,9-bis(2-ethylhexyl)-fluorene-2,7-diyl] by mapping the sample with 10 mu m spatial resolution at pressures up to 31 GPa. Neon is used as pressure transmitting medium. Reduction of torsion angle between adjacent repeats is observed during compression and found to be reversible upon decompression. Chain conformation does not depend on lateral position of sample in the pressure range from 1 to 7 GPa but depends significantly when pressure is increased from 7 to 31 GPa. Crystallite orientation does not depend on pressure or lateral position. The radiation damage is studied optically ex situ and proved to be insignificant.}}, author = {{Knaapila, Matti and Torkkeli, Mika and Konopkova, Zuzana and Haase, Dörthe and Liermann, Hanns-Peter and Scherf, Ullrich and Guha, Suchismita}}, issn = {{0024-9297}}, language = {{eng}}, number = {{20}}, pages = {{8284--8288}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Macromolecules}}, title = {{Measuring Structural Inhomogeneity of Conjugated Polymer at High Pressures up to 30 GPa}}, url = {{http://dx.doi.org/10.1021/ma401661t}}, doi = {{10.1021/ma401661t}}, volume = {{46}}, year = {{2013}}, }