HOLE STRUCTURES OF POLYMERS AND ZEOLITES PROBED BY 2-DIMENSIONAL ANGULAR-CORRELATION OF ANNIHILATION RADIATION

Citation
Y. Lou et al., HOLE STRUCTURES OF POLYMERS AND ZEOLITES PROBED BY 2-DIMENSIONAL ANGULAR-CORRELATION OF ANNIHILATION RADIATION, Journal of radioanalytical and nuclear chemistry, 211(1), 1996, pp. 85-91
Citations number
12
Categorie Soggetti
Chemistry Analytical","Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
ISSN journal
02365731
Volume
211
Issue
1
Year of publication
1996
Pages
85 - 91
Database
ISI
SICI code
0236-5731(1996)211:1<85:HSOPAZ>2.0.ZU;2-Y
Abstract
The two-dimensional angular correlation of annihilation radiation (2D- ACAR) technique has been developed to measure the hole structure of st retched and oriented polymers. The determination of polymer hole struc ture is demonstrated in a stretched semi-crystalline polyaryl-ether-et her-ketone (PEEK) sample. The atomic scale anisotropy is found to be c onsistent with the macroscopic scale stretch ratio. Applications of th e 2D-ACAR method to image the three-dimensional hole, free-volume, and cavity structures of molecular systems are discussed.