"查查詞典"手機(jī)版
千萬人都在用的超大詞匯詞典翻譯APP
- Through molecular design , a series of liquid crystalline copolyesters , which possibly possessed the auxetic behavior , were prepared by solution condensation reaction between 2 , 5 - bis ( p - alkoxy benzoyloxy ) hydrobenzoquinone , 4 , 4 ' - ( decanoxy ) dibenzoyl chloride and 4 , 4 ' - dihydroxy - oc , co - diphenoxydecane
經(jīng)分子設(shè)計(jì),通過2 , 5 ?二(對(duì)烷氧基苯酰氧基)對(duì)苯二酚、 4 , 4 ’ ?二羥基? , ?二苯氧基癸烷和4 , 4 ’ ? (癸二酰氧基)二苯甲酰氯之間的縮合反應(yīng)合成了一系列具有負(fù)泊松比潛能的液晶共聚酯。