|
|||||
|
|
Thermal decomposition of cycloadducts of vinylnaphthalenes with electron-deficient dienophiles |
|
| Authors: | B A Howell J J Powers D B Priddy |
| Institution: | (1) Institute for Research in Construction, National Research Council of Canada, Ottawa, Canada, K1A 0R6, Ontario, M-20, 1200 Montreal Road;(2) Institute of Inorganic Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia, SK-842 36, Dubravska Cesta 9;(3) Department of Ceramics, Glass and Cement, Slovak University of Technology, Bratislava, Slovakia, SK-81237, Radlinskeho-9 |
| Abstract: | Light transmittance was measured during heating of thin NaPO3 glass plates at different heating rates. According to the results, the crystallization of orthorhombic textured NaPO3 glass proceeds from sample surfaces into their interior due to the foregoing surface nucleation. The glass surface crystallization process resulted in the sigmoidal decrease of the optical transmittance. Elaborated data lead to the activation energy of glass surface crystallization of the value of 182.8 kJ mol -1. |
| Keywords: | DTA light transmittance thermal analysis SEM X-ray diffraction |
| 本文献已被 SpringerLink 等数据库收录！ | |