Rapid melt polycondensation of L-lactic acid under microwave irradiation

被引:11
|
作者
Jing, Shu [1 ]
Wang Peng
Zhang Yingmin
Mi Xiaojuan
机构
[1] DaQing Petr Inst, Sch Chem & Chem Engn, Daqing 163318, Peoples R China
[2] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China
关键词
D O I
10.1007/BF03218740
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
This paper has shown that the melt polycondensation of LA can be achieved efficiently under microwave irradiation and the reaction time can be shortened considerably compared with conventional heating. The polycondensation was successfully conducted with SnCl2 activated by TSA. At the optimal amount of catalysts, namely 0.45 wt% SnCl2 and equal mol ratio of TSA, PLLA with theMv of 5.08×104 g/mol was obtained at 528 W for 40 min.
引用
收藏
页码:659 / 662
页数:4
相关论文
共 50 条
  • [41] Synthesis and properties of high-molecular-weight poly(L-lactic acid) by melt/solid polycondensation under different reaction conditions
    Moon, SI
    Taniguchi, I
    Miyamoto, M
    Kimura, Y
    Lee, CW
    HIGH PERFORMANCE POLYMERS, 2001, 13 (02) : S189 - S196
  • [42] Synthesis of L,L-Lactide via Depolymerization of Oligo(L-Lactic Acid) by Microwave Irradiation
    Hirao, Koichi
    Masutani, Kazunari
    Ohara, Hitomi
    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2009, 42 (09) : 687 - 690
  • [43] Poly(L-Lactic Acid)/Silicon Dioxide Nanocomposite Prepared Via the In Situ Melt Polycondensation of L-Lactic Acid in the Presence of Acidic Silica Sol: Isothermal Crystallization and Melting Behaviors
    Cao, Dan
    Wu, Linbo
    JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 111 (02) : 1045 - 1050
  • [44] The effect of crystallization on the solid state polycondensation of poly(L-lactic acid)
    Xu, Hong
    Luo, Minghua
    Yu, Muhuo
    Teng, Cuiqing
    Xie, Si
    JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 2006, 45 (04): : 681 - 687
  • [45] Novel production process of Poly Lactic Acid (PLA) based on direct polycondensation of L-lactic acid
    Ishiyama, J
    Iwama, M
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 227 : U283 - U283
  • [46] Micro construction of poly (ε-caprolactone)/poly(L-lactic acid) blend film by solution casting under microwave irradiation
    Jin, W
    Liu, LJ
    MACROMOLECULAR BIOSCIENCE, 2004, 4 (07) : 656 - 664
  • [47] Isothermal melt crystallization kinetics of poly(L-lactic acid)
    Urbanovici, E
    Schneider, HA
    Brizzolara, D
    Cantow, HJ
    JOURNAL OF THERMAL ANALYSIS, 1996, 47 (04): : 931 - 939
  • [48] Melt polycondensation of D,L-lactic acid:: MALDI-TOF MS investigation of the ring-chain equilibrium
    Kéki, S
    Bodnár, I
    Borda, J
    Deák, G
    Zsuga, M
    JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (14): : 2833 - 2836
  • [49] Effective binary catalysts of Bronsted acidic ionic liquids and stannous chloride dihydrate for melt polycondensation of L-lactic acid
    Peng, Qiaohong
    Mahmood, Khalid
    Wu, Ying
    Liu, Zhengping
    Wei, Li
    Yuan, Hua
    Yang, Ruixia
    MOLECULAR CATALYSIS, 2017, 434 : 140 - 145
  • [50] Isothermal melt crystallization kinetics of poly(L-lactic acid)
    Freiburger Materialforschungszentrum, FMF, Freiburg, Germany
    J Therm Anal, 4 (931-939):