Noncatalytic Polycondensation of L-Lactic Acid under Microwave Irradiation

被引:11
|
作者
Hirao, Koichi [1 ]
Masutani, Kazunari [1 ]
Ohara, Hitomi [1 ]
机构
[1] Kyoto Inst Technol, R&D Ctr Biobased Mat, Sakyo Ku, Kyoto 6068585, Japan
关键词
Microwave Irradiation; Noncatalysts; Polycondensation; Poly(Lactic Acid); POLY(L-LACTIC ACID); CATALYSTS;
D O I
10.1252/jcej.09we040
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Noncatalytic polycondensation of L-lactic acid under microwave irradiation is compared with that under conventional heating. Under microwave irradiation, higher molecular weights of poly(L-lactic acid) can be obtained comparing with under conventional heating. Though the racemization of L-lactate was induced, it can be lowered at higher vacuum. As a result, higher molecular weight poly(L-lactic acid), comparing with conventional heating without increasing racemization, was synthesized with microwave irradiation.
引用
收藏
页码:417 / 419
页数:3
相关论文
共 50 条
  • [21] Melt polycondensation of L-lactic acid to poly(L-lactic) with Sn(II) catalysts combined with various metal alkoxides
    Moon, SI
    Kimura, Y
    [J]. POLYMER INTERNATIONAL, 2003, 52 (02) : 299 - 303
  • [22] Variable volume reaction kinetics of L-lactic acid melt polycondensation
    School of Materials Science and Engineering, Beijing Institute of Clothing Technology, Beijing 100029, China
    [J]. Shiyou Huagong, 2007, 6 (595-600):
  • [23] The effect of crystallization on the solid state polycondensation of poly(L-lactic acid)
    Xu, Hong
    Luo, Minghua
    Yu, Muhuo
    Teng, Cuiqing
    Xie, Si
    [J]. JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 2006, 45 (04): : 681 - 687
  • [24] Novel production process of Poly Lactic Acid (PLA) based on direct polycondensation of L-lactic acid
    Ishiyama, J
    Iwama, M
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 227 : U283 - U283
  • [25] Micro construction of poly (ε-caprolactone)/poly(L-lactic acid) blend film by solution casting under microwave irradiation
    Jin, W
    Liu, LJ
    [J]. MACROMOLECULAR BIOSCIENCE, 2004, 4 (07) : 656 - 664
  • [26] Thermal properties of copoly (l-lactic acid/glycolic acid) by direct melt polycondensation
    Lan, P
    Lv, J
    Hu, XC
    [J]. Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials (ICAFPM 2005), Vol 1 and 2: NEW CENTURY , NEW MATERIALS AND NEW LIFE, 2005, : 1318 - 1322
  • [27] Thermal properties of copoly(L-lactic acid/glycolic acid) by direct melt polycondensation
    Lan, Ping
    Jia, Lv
    [J]. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY, 2006, 43 (11): : 1887 - 1894
  • [28] Study of solubility of copoly (L-lactic acid/glycolic acid) by direct melt polycondensation
    Lan, P
    Hu, XC
    [J]. Proceedings of 2005 International Conference on Advanced Fibers and Polymer Materials (ICAFPM 2005), Vol 1 and 2: NEW CENTURY , NEW MATERIALS AND NEW LIFE, 2005, : 916 - 919
  • [29] Synthesis of PLLA(I): Direct melt polycondensation of L-lactic acid.
    Mai, HZ
    Zhao, YM
    Wang, ZY
    Yan, B
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2002, 223 : D2 - D2
  • [30] Synthesis of PLLA(II): Post-polycondensation of poly(L-lactic acid).
    Wang, ZY
    Zhao, YM
    Mai, HZ
    Wang, J
    Yan, B
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2002, 223 : D2 - D2