Photochemical modification of polytetrafluoroethylene into oleophilic property using an ArF excimer laser
Photochemical modification of polytetrafluoroethylene into oleophilic property using an ArF excimer laser
复制标题
使用 ArF 准分子激光对聚四氟乙烯进行光化学改性使其具有亲油特性
DOI：
10.1557/jmr.1992.1912
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发表时间：
1992
影响因子：
2.7
通讯作者：
K. Toyoda
中科院分区：
文献类型：
--
作者：
M. Okoshi;M. Murahara;K. Toyoda
本文报道了用ArF准分子激光激发B（CH_3）_3分子释放的CH_3自由基对聚四氟乙烯（PTFE）进行光化学改性。通过XPS分析和红外ATR光谱测量研究了聚合物表面CH_3自由基的引入和氟原子的损耗。在这些光化学反应中，光照射的表面变成亲油的。通过接触角测量研究了其性能。在200 °C高温、O_2或N_2气氛中放置6h，以及在碱性或酸性水溶液中浸泡，考察了亲油表面的稳定性。
Photochemical modification of the polytetrafluoroethylene (PTFE) with incorporation of the CH_3 radical released from the B(CH_3)_3 molecule excited by an ArF excimer laser has been demonstrated. The incorporation of CH_3 radicals and the depletion of fluorine atoms of the polymer surface were studied by XPS analysis and infrared ATR spectrum measurement. In these photochemical reactions, the photoirradiated surface changed into oleophilic. The properties were studied by contact angle measurement. The stability of the oleophilic surface was examined at the elevated temperature of 200 °C for 6 h in O_2 or N_2 ambient and also by immersing in alkaline or acid water solutions.