Synthesis and characterization of polylactic acid (PLA) using a solid acid catalyst system in the polycondensation method

被引：0
作者：
Bhushan Choubisa
Mayank Patel
Bharatkumar Dholakiya
机构：
[1] Sardar Vallabhbhai National Institute of Technology (SVNIT),Department of Applied Chemistry
[2] NVPAS,Department of Chemistry
来源：
Research on Chemical Intermediates | 2013年 / 39卷
关键词：
Poly(lactic acid); Catalyst; Polycondensation; Cellulose sulfuric acid;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, synthesis of poly(l(+) lactic acid) was carried out by using an acid catalyst. Neat chlorosulfonic acid reacts with cellulose to give cellulose sulfuric acid in which sulfuric acid is immobilized on the cellulose surface via bond formation. Cellulose sulfuric acid was used as a catalyst in a quantity of 1.0 wt.% calculated on the monomer. Polycondensation was carried out over a period of 24 h. The resulting poly(l(+) lactic acid) was characterized by Fourier-transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC) thermogravimetric analysis (TGA), 1H and 13C nuclear magnetic resonance (NMR), and gel permeation chromatography. The molecular weight of poly(l-lactic acid) reached as high as 14,875.
引用
收藏
页码：3063 / 3070
页数：7
相关论文
共 23 条
[1]  
Piskin E(1994)undefined J. Biomater. Sci. Polymer. 6 775-53
[2]  
Xu K(1996)undefined Tur. J. Chem. 20 43-84
[3]  
Ahmet K(2002)undefined J. Polym. Environ. 9 63-71
[4]  
Emir DB(2010)undefined Macromol. Symp. 296 63-1506
[5]  
Erhan P(1997)undefined Biomaterials 18 1503-143
[6]  
Garlotta D(1998)undefined Polym. Degrad. Stab. 59 137-397
[7]  
Dina MAS(1993)undefined J. Mater. Sci. Mater. Med. 4 179-153
[8]  
Susana J(2000)undefined J. Mater. Sci. Mater. Med. 11 393-undefined
[9]  
Cristina B(2007)undefined Appl. Catal. A 331 149-undefined
[10]  
Gil MH(undefined)undefined undefined undefined undefined-undefined
123