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以可再生资源2,5-呋喃二甲酸(FDCA)和1,8-辛二醇(1,8-ODO)为原料,钛酸四丁酯为催化剂,采用直接酯化法制得聚2,5-呋喃二甲酸1,8-辛二酯(1,8-POF).考察了原料配比、催化剂用量、酯化温度、缩聚温度及缩聚时间对聚合反应的影响,结果表明,当n(FDCA)∶n(1,8-ODO) =1∶1.2,钛酸四丁酯摩尔分数为0.3%,酯化温度为240℃,缩聚温度为260℃,缩聚时间为300 min时,缩聚产物的比浓粘度最高(2.1 dL/g),端羧基含量最低(5.8 mol/t).与乙二醇相比,采用1,8-辛二醇为单体降低了酸醇的摩尔比,减少了醇的消耗,同时得到了较高分子量的聚合物.气质联用仪对酯化馏出液和缩聚产物真空抽出物进行了分析,结果表明,酯化馏出液的主要成分是水,并含有少量的1,8-ODO;缩聚产物真空抽出物的组成为环己酮(56%)、顺式-3-辛烯醇(18%)、4-甲基-3-戊烯-2-酮(17%)和4-羟基-4-甲基-2-戊酮(9%).

参考文献

[1] Moore J A,Kelly J E.Polyesters Derived from Furan and Tetrahydrofuran Nuclei[J].Macromolecules,1978,11:568-573.
[2] Moore J A,Kelly J E.For a Preparation of This Polymer by a Novel Route See[J].J Polym Sci Part A:Polym Chem,1978,16(3):115.
[3] Moore J A,Kelly J E.Thermally Initiated Crosslinking of an Unsaturated Heterocyclic Polyester[J].J Polym Sci Part A:Polym Chem,1978,16(9):2407-2409.
[4] Moore J A,Kelly J E.Polyhydroxymethylfuroate Poly (2,5-Furandiylcarbonyloxymethylene)[J].J Polym Sci Part A:Polym Chem,1984,22(3):863-864.
[5] Storbeck R,Ballauff M.Synthesis and Properties of Polyesters Based on 2,5-Furandicarboxylic Acid and 1,4∶ 3,6-Dianhydrohexitols[J].J Polym Sci Part A:Polym Chem,1993,34 (23):5003-5006.
[6] Mo'nica G,Alessandro G,Armando J.Synthesis and Characterization of Poly (2,5-furan dicarboxylate) s Based on a Variety of Diols[J].J Polym Sci Part A:Polym Chem,2011,49(17):3759-3768.
[7] Alessandro G,Armando J.The Furan Counterpart of Poly (ethylene terephthalate):An Alternafive Material Based on Renewable Resources[J].J Polym Sci Part A:Polym Chem,2009,47 (1):295-298.
[8] DONG Weifu,CHEN Mingqing,LAN Dan.The Preparation Method of the Polyesters Based on 2,5-Furandicarboxylic Acid:CN,20101517891[P],2010-07-28 (in Chinese).东为富,陈明清,蓝丹.一种2,5-呋喃二甲酸基聚酯的制备方法:中国,20101517891[P],2010-07-28.
[9] Jiang M,Liu Q,Zhang Q.A Series of Furan-Aromatic Polyesters Synthesized via Direct Esterification Method Based on Renewable Resources[J].J Polym Sci Part A:Polym Chem,2012,50(5):1026-1036.
[10] LIU Qian,JIANG Min,ZHOU Guangyuan.Synthesis of Poly(ethylene 2,5-furadicarboxylate) via Direct Esterification Method[J].Chinese J Appl Chem,2012,29(7):751-756(in Chinese).刘茜,姜敏,周光远.直接酯化法合成聚2,5-呋喃二甲酸乙二酯[J].应用化学,2012,29(7):751-756.
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