羧基单体对脂肪族聚酯性能的影响

详细信息    查看全文 | 推荐本文 |

英文篇名：Effect of Carboxyl Monomer on Properties of Aliphatic Polyester 作者：白桢慧 ; 苏婷婷 ; 王战勇 英文作者：Zhenhui Bai;Tingting Su;Zhanyong Wang;College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University; 关键词：脂肪族聚酯 ; 羧基单体 ; 可生物降解 英文关键词：aliphatic polyester;;carboxyl monomer;;biodegradation 中文刊名：GFZC 英文刊名：Polymer Materials Science & Engineering 机构：辽宁石油化工大学化学化工与环境学部; 出版日期：2019-06-15 出版单位：高分子材料科学与工程 年：2019 期：v.35 基金：国家自然科学基金资助项目(31570097) 语种：中文; 页：GFZC201906002 页数：6 CN：06 ISSN：51-1293/O6 分类号：15-20

摘要

以1,4-丁二醇和3种不同的羧基单体为反应物,通过溶液聚合法合成3种脂肪族聚酯——聚(丁二酸丁二酯)(PBS)、聚(己二酸丁二酯)(PBA)和聚(辛二酸丁二酯)(PBSub)。利用红外光谱、核磁共振、差示扫描量热、热重分析、拉伸测试等分析手段对3种聚酯的结构、热性能和力学性能进行分析,并对所合成聚酯的酶促降解性能进行了研究。结果表明,3种脂肪族聚酯综合性能较优,热分解温度均高于328℃,热稳定性良好;力学性能测试发现三者断裂伸长率均在300%以上;酶解实验表明,24 h时3种聚酯的失重率超过90%,可降解性良好。随着羧基单体中亚甲基数目的增加,脂肪族聚酯的拉伸强度降低,但聚酯断裂伸长率和酶降解性能提高。
        Three different aliphatic polyesters, poly(butylene succinate)(PBS), poly(butylene adipate)(PBA) and poly(butylene suberate)(PBSub), were synthesized by solution polycondensation using 1,4-butanediol as hydroxyl monomers, succinic acid, adipic acid, and suberic acid as carboxyl monomers, respectively. FT-IR, NMR, DSC, TG, testing machine were used to characterize the structure, thermal stability, mechanical properties and biodegradability of three different kinds of aliphatic polyesters. All the three different kinds of polyesters exhibit good performances. The thermal decomposition temperature of the polyesters is higher than 328 ℃, and the thermal stabilities are well. The elongation at break of the aliphatic polyesters is above 300%. The biodegradation rate of the three polyesters is more than 90% after 24 h, and the biodegradability is excellent. The results show that with the increase of methylene groups in the carboxyl monomers, the tensile strength decreases, but the elongation at break and biodegradability increase.

引文

[1] 张敏,宋洁,葛正浩,等.β-环糊精与聚丁二酸丁二醇酯(PBS)包合物对PBS结晶性的影响[J].高分子材料科学与工程,2012,28(5):96-99.Zhang M,Song J,Ge Z H,et al.Influence of β-CD and PBS inclusion complex on crystallinity of PBS[J].Polymer Materials Science&Engineering,2012,28(5):96-99.
    [2] 张昌辉,张敏,赵霞.高相对分子质量可生物降解聚丁二酸丁二醇酯的合成[J].石油化工,2009,38(2):185-188.Zhang C H,Zhang M,Zhao X.Synthesis of high molecular weight biodegradable polybutylene succinate[J].Petrochemical Technology,2009,38(2):185-188.
    [3] Huang C Q,Luo S Y,Xu S Y,et al.Catalyzed chain extension of poly (butylene adipate) and poly (butylene succinate) with 2,2′-(1,4-phenylene)-bis (2-oxazoline)[J].J.Appl.Polym.Sci.,2010,115:1555-1565.
    [4] Cui Z,Qiu Z.Thermal properties and crystallization kinetics of poly (butylene suberate) [J].Polymer,2015,67:12-19.
    [5] Sato H,Murakami R,Noda I,et al.Infrared and Raman spectroscopy and quantum chemistry calculation studies of C-H…O hydrogen bondings and thermal behavior of biodegradable polyhydroxyalkanoate[J].J.Mol.Struct.,2005,744:35-46.
    [6] Nikolic M S,Djonlagic J.Synthesis and characterization of biodegradable poly (butylene succinate-co-butylene adipate) s[J].Polym.Degrad.Stab.,2001,74:263-270.
    [7] 胡雪岩,马莹,高兆营,等.聚丁二酸丁二酯的酶促降解研究[J].中国塑料,2016,30(7):18-22.Hu X Y,Ma Y,Gao Z Y,et al.Enzymatic degradation of poly(butylene succinate)[J].China Plastic,2016,30(7):18-22.
    [8] Chrissafis K,Paraskevopoulos K M,Bikiaris D N.Thermal degradation mechanism of poly (ethylene succinate) and poly (butylene succinate):comparative study[J].Thermochim.Acta,2005,435:142-150.
    [9] Chrissafis K,Paraskevopoulos K M,Bikiaris D N.Effect of molecular weight on thermal degradation mechanism of the biodegradable polyester poly(ethylene succinate)[J].Thermochim.Acta.2006,440:166-175.
    [10] Shirahama H Y,Kawaguchi,Aludin M S,et al.Synthesis and enzymatic degradation of high molecular weight aliphatic polyesters[J].J.Appl.Polym.Sci.2001,80:340-347.
    [11] Zumstein M T,Kohler H P E,McNeill K,et al.Enzymatic hydrolysis of polyester thin films:real-time analysis of film mass changes and dissipation dynamics[J].Environ.Sci.Technol.,2015,50:197-206.