<正>Under mild conditions,conversion of a variety of ketoximes and aldoximes to their corresponding amides and nitriles proceeded in the presence of PEG-SO_3H w
Lin Yutang is called the master humorist in China.He advocates humor and spiritual literature in his magazine Lun Yu(Analects)which attracts essays and readersh
<正>New flame-retardant polyimide-silver nanocomposite containing phosphine oxide moiety in the main chain was synthesized by a convenient ultraviolet irradiati