An anhydride monomer containing ether oxide bridge,7-oxa-bicyclo[2,2,1]hept-5-ene-2,3-dicarboxylic anhydride (ONA),was s......

The phosphazane derivatives(L1–3) were readily obtained by reaction of different ratios of PCl3 and PhNH2. The L1–3 de......

(oetober3一7 th .1 991,Guilin,China)PLENARYLECTURESP一01 Ion Exehange Resins and Polymeric Adsorbents APPlied asPurposeB......

Several nickel complexes [N,N]NiBr2, in which [N,N] indicates bidentate nitrogencontaining ligands (1: [N,N]=N-(2,6-diis......

以三氟甲磺酸（CF3SO3H）为催化剂,1-己烯、1-癸烯、1-十二碳烯为原料进行齐聚反应合成低黏度PAO,考察了催化剂用量、反应温度、反应时......

用乙酸乙酯-水和丙酮-水为溶剂,石油醚为沉淀剂从黑荆树皮中提取抗氧化活性物质.实验表明:提取物具有较好的抗氧化活性.通过化学预......