含肉桂酰氧基光敏性單體的合成及表征

化工論文編號(hào):HG152  論文字?jǐn)?shù):6899,頁(yè)數(shù):22

目  錄
中文摘要 I
英文摘要 II
目  錄 III
1 緒論 1
2 實(shí)驗(yàn)部分 4
 2.1 實(shí)驗(yàn)原料 4
 2.2 含肉桂酰氧基光敏性單體的制備 4
 2.3 含肉桂酰氧基光敏性單體的表征 5
3.結(jié)果與討論 7
 3.1 產(chǎn)物結(jié)構(gòu)的確認(rèn) 7
 3.2 各種實(shí)驗(yàn)條件對(duì)反應(yīng)的影響 12
4 結(jié)論 15
致  謝 16
參考文獻(xiàn) 17

摘要：形狀記憶材料是一類對(duì)外界刺激具有敏感性的智能材料，若在高分子材料中引入發(fā)色基團(tuán)，在光照作用下，發(fā)色基團(tuán)發(fā)生光致異構(gòu)化反應(yīng)（如順-反異構(gòu)），從而完成形狀的記憶。本論文以肉桂酸甲酯和二乙醇胺為原料，以甲醇鈉為催化劑，合成了新的功能性內(nèi)酯單體——-甲基--肉桂酰氧基--戊內(nèi)酯，并通過(guò)FTIR、NMR、MS、元素分析等測(cè)試分析方法，驗(yàn)證了其結(jié)構(gòu)。在此基礎(chǔ)上，考查了甲酯與二乙醇胺配比、催化劑用量、反應(yīng)溫度以及反應(yīng)時(shí)間對(duì)反應(yīng)轉(zhuǎn)化率的影響，并得到了反應(yīng)優(yōu)化條件：甲酯與二乙醇胺1：2投料，甲醇鈉用量為反應(yīng)物總量的0.6%，反應(yīng)溫度為110℃，反應(yīng)時(shí)間為5h。該優(yōu)化條件下產(chǎn)物收率為73.8%，純度為91%。

關(guān)鍵詞：形狀記憶；光致；肉桂酰氧基；光敏性單體

Abstract: Shape memory materials are a kind of intelligent polymer with chromophore group which will undergo isomerization reactions (such as geometrical isomerism) in light, then possess the shape memory properties. In this thesis, methyl cinnamate and diethanolamine was catalyzed by sodium methylate.. The product was identified as -methyl--cinnamoyl--valerolactone with FTIR, NMR, MS and elemental analysis, etc. The influence of methyl/diethanolamine ratio, catalyst amount, reaction temperature and reaction time on the reaction conversion was investigated.  On this basis, the optimal reaction conditions were defined as follow: methylate/diethanolamine ratio was 1:2, sodium methoxide amount was 0.6% (total reactants), reaction temperature was 110 oC and the reaction time was 5 hours. The optimal yield of the reaction was 73.8%, and the purity of the product was 91%.

Keywords：Shape memory; light-induced; cinnamoyl group; photosensitive monomer