关键词: 薄层色谱, 氧化, 反应机理, 红外分光光度法, 碳13核磁共振谱法, 电泳, 聚丁二烯, 偶极子

The oxidized bromine-terminated polybutadiene samples were separated with dielectrophoresis-thin-layer chromatog. and characterized by 13C-NMR and IR, and their mol. wt. distribution was measured by gel-permeation chromatog., from which the process of autoxidn. was deduced. Epoxides did not appear in the early oxidation stage. With further oxidation, highly oxidative crosslinked products appeared.

Key words: THIN-LAYER CHROMATORGAPHY, OXIDATION, REACTION MECHANISM, INFRARED SPECTROPHOTOMETRY, C13 NMR SPECTROMETRY, ELECTROPHORESIS, POLYBUTADIENE, DIPOLES