不同热交联气氛对含氟聚芳醚近红外光学吸收的影响  

Effect of Heat-treatment Atmosphere on the Near-infrared Absorption of the Fluorinated Poly(aryl ether)

作　　者：李艾泽[1] 金宇辉[1] 刘佰军[1] 姜振华[1] 

机构地区：[1]吉林大学化学学院,长春130023

出　　处：《高等学校化学学报》2005年第6期1177-1179,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50203004)资助.

摘　　要：C1s and O1s of the 3,5-bitrifluoromethylated poly（aryl ether） terminated with phenylethynyl moieties（2CF3-PAE-PEP） before/after crosslinking were tested by the X-ray photoeletron spectroscopy（XPS）. The measurements show that some of the C\O bonds in the molecule structure will be broken if the films are crosslinked in the air, which is able to form some new CO bonds with the oxygen in the air. However, the ratios of the groups in the films cured in nitrogen remain the same as that of the uncured samples. It is the the forth harmonic of the stretching vibration of CO bond(4ν<sup>φ<sub>C=O) that causes the absorption loss at the wavelength 1 382 nm.C_(1s) and O_(1s) of the 3,5-bitrifluoromethylated poly(aryl ether) terminated with phenylethynyl moieties(2CF_3-PAE-PEP) before/after crosslinking were tested by the X-ray photoeletron spectroscopy(XPS). The measurements show that some of the C\_O bonds in the molecule structure will be broken if the films are crosslinked in the air, which is able to form some new CO bonds with the oxygen in the air. However, the ratios of the groups in the films cured in nitrogen remain the same as that of the uncured samples. It is the the forth harmonic of the stretching vibration of CO bond(4ν~~φ__(C=O)) that causes the absorption loss at the wavelength 1 382 nm.

关 键 词：含氟聚芳醚 交联 吸收损耗 XPS能谱 

分 类 号：O631[理学—高分子化学]