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1、I目錄目錄摘要摘要................................................................................................................................2Abstract..........................................................................
2、...............................................2第1章前言...........................................................................................................3第2章乳酸催化轉化制備乳酸催化轉化制備23戊二酮戊二酮................................
3、................................32.1催化劑的表征催化劑的表征..............................................................................................42.2乳酸催化轉化制備乳酸催化轉化制備PDO反應結果反應結果...............................................
4、.............52.3碳平衡計算碳平衡計算..................................................................................................72.4結論結論.......................................................................................
5、.......................8第3章乳酸轉化制備乳酸轉化制備12丙二醇丙二醇........................................................................83.1CuZn摩爾比對摩爾比對CuZnO催化劑催化性能的影響催化劑催化性能的影響..................................83.2反應壓力對反應壓力對CuZnO催化劑催化性能
6、的影響催化劑催化性能的影響..........................................93.3反應溫度對反應溫度對CuZnO催化劑催化性能的影響催化劑催化性能的影響..........................................93.4結論結論............................................................................
7、..................................9第4章乳酸脫水制備丙烯酸乳酸脫水制備丙烯酸...............................................................................94.1催化劑研究進展催化劑研究進展...................................................................
8、.....................104.1.1金屬鹽類金屬鹽類..........................................................................................104.1.2分子篩類分子篩類...............................................................................
9、...........114.2產物生成機理的探討產物生成機理的探討................................................................................124.3乳酸脫水制備丙烯酸副反應乳酸脫水制備丙烯酸副反應....................................................................134.4結語結語
10、............................................................................................................13第5章乳酸縮聚制備聚乳酸乳酸縮聚制備聚乳酸.............................................................................135.1聚乳酸的合成方
11、法聚乳酸的合成方法....................................................................................145.1.1直接縮聚法直接縮聚法......................................................................................145.1.2間接縮聚法間接縮聚法.......
12、...............................................................................145.2相關原理相關原理....................................................................................................155.2.1縮聚反應機理縮聚反應機理.........
13、.........................................................................155.2.2低聚乳酸裂解反應機理低聚乳酸裂解反應機理..................................................................165.2.3影響縮聚反應工藝條件的因素影響縮聚反應工藝條件的因素.....................
14、.................................16第6章展望展望.........................................................................................................17參考文獻參考文獻...............................................................
15、.......................................................18致謝..........................................................................................................................193第1章前言前言乳酸是一種極具發(fā)展?jié)摿Φ木毣瘜W品。從結構上來看,它的分子
16、中既帶羥基又帶羧基,是自然界中存在的最廣泛的一種羥基羧酸,也是最簡單的一種羥酸。從生產乳酸的原料看其來源廣泛如植物淀粉,纖維素半纖維素木質素等,而利用淀粉質原料發(fā)酵制備乳酸早已商業(yè)化。這兩點都為以乳酸為平臺分子制備大宗化學品提供了現(xiàn)實基礎,因而乳酸可以進行范圍廣泛的化學反應如氧化反應、還原反應、縮合和在醇基上的取代反應等從而制備多種乳酸衍生物。圖1由乳酸制得各種化學品第2章乳酸催化轉化制備乳酸催化轉化制備23戊二酮戊二酮23戊二酮(PD
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