摘要
TheX-rayphotoelectronspectroscopy(XPS)techniquewasusedtostudythereactionofphenylisocyanateandcellulosewithdifferentmoisturecontents(MC).TheC1SXPSpeakofcelluloseisonlyonesymmetricalcontributionat285.95eV.WhiletheC1SXPSpeaksofN,N-dibenzylurea,thereactionresultantofphenylisocyanateandwater,havetwocontributionsat288.6±9.1eVand284.7±0.1eVcorrespondingtothecarbonylgroupandphenylringgroup,respectively.Theirarearatioisbetween11.88and11,98thatisquiteneattothetheoreticalvalueof12.0.Withthemoisturecontent(MC)ofcelluloseincreased,theproportionofisocyanatereactedwithwaterincreased.WhentheMCreaches9.78%,92.98%ofallconsumedisocyanatewillreactwithwater.Byspatteringanalysis,itrevealsthatthereactionresultantsofbenzylisocyanatedistributemainlyonthesurfaceofcellulose.
出版日期
2004年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)