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| 折扣與優(yōu)惠：團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要：本實(shí)驗(yàn)以甲基丙烯酸-2-羥乙酯和3-巰基丙酸原料采用脫水酯化法合成了價(jià)格低廉的同時(shí)含有活性較高的端基巰基與乙烯基的功能型單體甲基丙烯酸-3-巰基丙酰氧基乙酯(MMPOE)。以對(duì)氯甲基苯乙烯和3-巰基丙酸為主要原料合成同時(shí)含有活性較低的端基巰基與乙烯基的功能型單體3-巰基丙酸(4-乙烯基苯基)甲酯(MPVBMA)。然后分別以這兩種功能單體為單體，以自由基聚合為反應(yīng)機(jī)理，進(jìn)行Click反應(yīng)制備主鏈含硫的功能聚合物。研究比較兩種功能單體對(duì)所合成聚合物性能的影響，結(jié)果顯示甲基丙烯酸-3-巰基丙酰氧基乙酯功能單體可經(jīng)Click反應(yīng)制備主鏈含硫聚合物，體系不易交聯(lián)。利用三檢測(cè)凝膠滲透色譜(GPC)傅里葉紅外光譜(FTIR)和核磁共振氫譜(1H-NMR)對(duì)聚合物結(jié)構(gòu)進(jìn)行表征測(cè)試，證明了巰基和雙鍵發(fā)生Click反應(yīng)，生成了具有高分子量的主鏈含硫功能聚合物。通過(guò)差示掃描量熱法(DSC)對(duì)聚合物的玻璃化轉(zhuǎn)變溫度Tg進(jìn)行了測(cè)試，發(fā)現(xiàn)其具有較低的玻璃化轉(zhuǎn)變溫度。 關(guān)鍵詞：點(diǎn)擊化學(xué)；主鏈；含硫聚合物
Abstract：2-(3-mercaptopropionyloxy)ethyl methacrylate (MMPOE)，a novel chain functional monomers，was synthesized from hydroxyethyl methacrylate and 3- mercaptopropionic acid. The polymer was prepared by MMPOE using “Click” chemistry of diolefin and dithiol. Then the other polymer was synthesized by 4-Viny- -lbenzyl-3-Mercaptopropionate (MPVBMA) which was based on Chloromethyl styrene and 3 - mercaptopropionyl potassium using the same method. We compared the influence of the two kinds of thiol-ene. The result shows that the polymer synthesized from 2-(3-mercaptopropionyloxy)ethyl methacrylate was better than the polymer based on-Viny-lbenzyl-3-Mercaptopropionate (MPVBMA) which was easy to crosslinking at room temperature. The structure of the Mainchain- sulfuric polymers was characterized by GPC 、FTIR and 1H-NMR. The result showed the highly efficient “Click” polymerization took place between mercapto group and double bond,and Mainchain- sulfuric functional polymers generated during the polymerization. The Tg of the polymer was studied by DSC. We studied the Tg of the polymer was low. Key word：Click chemistry；Mainchain- sulfuric polymers
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