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

来源：

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN | 2009年 / 42卷 / 06期

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

页码：417 / 419

页数：3

共 50 条

[41] Polymerization of lactic acid oligomers under microwave irradiation
Guba, G. Ya
Gusar, A. O.
Mamaeva, E. A.
Popova, V. A.
Dolgov, I. R.
Bakibayev, A. A.
Ahmedjanov, R. R.
[J]. BULLETIN OF THE UNIVERSITY OF KARAGANDA-CHEMISTRY, 2019, (96): : 8 - 17
[42] Preparation of L-lactic acid
School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
[J]. Dongbei Daxue Xuebao, 2006, SUPPL. (78-80):
[43] Studies on the synthesis and thermal properties of copoly(L-lactic acid/glycolic acid) by direct melt polycondensation
Lan, P
Zhang, YP
Gao, QW
Shao, HL
Hu, XC
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 92 (04) : 2163 - 2168
[44] Enzymatic degradation of poly(L-lactic acid): Effects of UV irradiation
Tsuji, Hideto
Echizen, Yoshihisa
Nishimura, Yoshiro
[J]. JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2006, 14 (03) : 239 - 248
[45] Enzymatic Degradation of Poly(l-Lactic Acid): Effects of UV Irradiation
Hideto Tsuji
Yoshihisa Echizen
Yoshiro Nishimura
[J]. Journal of Polymers and the Environment, 2006, 14 : 239 - 248
[46] Covalent bonding of collagen on poly(L-lactic acid) by gamma irradiation
Yang, Y
Porté, MC
Marmey, P
El Haj, AJ
Amédée, J
Baquey, C
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 207 (02): : 165 - 174
[47] RAMAN-SPECTRA OF GLYCOLIC ACID, L-LACTIC ACID AND D,L-LACTIC ACID OLIGOMERS
CASSANAS, G
KISTER, G
FABREGUE, E
MORSSLI, M
BARDET, L
[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1993, 49 (02): : 271 - 279
[48] Microwave Assisted Enzymatic Hydrolysis of Larch for L-lactic Acid Production
Yang Xue-xin
Fang Gui-zhen
[J]. 2010 4TH INTERNATIONAL CONFERENCE ON BIOINFORMATICS AND BIOMEDICAL ENGINEERING (ICBBE 2010), 2010,
[49] Properties of poly (L-lactic acid) reinforced by L-lactic acid grafted nanocellulose crystal
Wang, Kaili
Lu, Jianxiao
Tusiime, Rogers
Yang, Yun
Fan, Fan
Zhang, Hui
Ma, Bomou
[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2020, 156 : 314 - 320
[50] Recovery of L-Lactic Acid from Poly(L-lactic acid) under Hydrothermal Conditions of Dilute Aqueous Sodium Hydroxide Solution
Yagihashi, Masaru
Funazukuri, Toshitaka
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (03) : 1247 - 1251

← 1 2 3 4 5 →