yilai1002 2009/08/02
[img]http://www.instrument.com.cn/bbs/images/affix.gif[/img][url=http://www.instrument.com.cn/bbs/download.asp?ID=163196]Polymerization of quarternary alkyl salts of dimethylaminoethyl methacrylatewith a different alkyl chain length[/url]