New potentially biodegradable polyurethanes

被引:18
作者
Borda, Jeno [1 ]
Keki, Sandor [1 ]
Bodnar, Ildiko [1 ]
Nemeth, Nora [1 ]
Zsuga, Miklos [1 ]
机构
[1] Univ Debrecen, Dept Appl Chem, H-4010 Debrecen, Hungary
关键词
biodegradable; polyurethanes; copolymerization; MALDI; thermoplastics;
D O I
10.1002/pat.822
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
New potentially biodegradable, thermoplastic multiblock copolymers from poly(lactic acid), poly (E-caprolactone) and/or poly(lactic acid-F-caprolactone) copolymers were synthesized using toluene diisocyanate (TDI) as chain extender and poly(ethylene glycol) as intrinsic plasticizer. The structures of the resulting copolymers were unambiguously confirmed by NMR, IR and matrix assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS) methods. The effects of the molar ratio of the polymers to TDI on the molar mass and on the mechanical properties of the resulting multiblock copolymers were also investigated. The mechanical properties such as tensile strength, Young's modulus, Shore A hardness and elongation at break of the multiblock copolymers suitable for making foils are compared with those of some relevant commercially available plastics. According to the comparative mechanical tests, some mechanical properties of the new biodegradable copolymers exceed those of the conventional plastics. Copyright (c) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码:945 / 953
页数:9
相关论文
共 41 条
[1]  
Amass W, 1998, POLYM INT, V47, P89, DOI 10.1002/(SICI)1097-0126(1998100)47:2<89::AID-PI86>3.0.CO
[2]  
2-F
[3]  
Bichler C, 1993, BIOENGINEERING, V19, P9
[4]  
Borda J, 2000, J POLYM SCI POL CHEM, V38, P2925, DOI 10.1002/1099-0518(20000815)38:16<2925::AID-POLA100>3.0.CO
[5]  
2-E
[6]   Synthesis and investigation of the mechanical properties of poly(lactic Acid)-(toluene diisocyanate)-poly(ethylene glycol)/poly(propylene glycol) copolymers [J].
Borda, J ;
Bodnár, I ;
Ráthy, I ;
Zsuga, M .
POLYMERS FOR ADVANCED TECHNOLOGIES, 2003, 14 (11-12) :813-819
[7]   Preparation and characterization of biodegradable PLA polymeric blends [J].
Chen, CC ;
Chueh, JY ;
Tseng, H ;
Huang, HM ;
Lee, SY .
BIOMATERIALS, 2003, 24 (07) :1167-1173
[8]   BIODEGRADABLE POLYMERS .7. ON THE MECHANISM OF RING-OPENING POLYMERIZATION OF CYCLIC ESTERS OF ALIPHATIC HYDROXYCARBOXYLIC ACIDS BY MEANS OF DIFFERENT TIN-COMPOUNDS [J].
DAHLMANN, J ;
RAFLER, G .
ACTA POLYMERICA, 1993, 44 (02) :103-107
[9]   Macromolecular engineering of polylactones and polylactides .19. Kinetics of ring-opening polymerization of epsilon-caprolactone initiated with functional aluminum alkoxides [J].
Dubois, P ;
Ropson, N ;
Jerome, R ;
Teyssie, P .
MACROMOLECULES, 1996, 29 (06) :1965-1975
[10]   SYNTHESIS OF LOW-MOLECULAR-WEIGHT COPOLY(L-LACTIC ACID EPSILON-CAPROLACTONE) BY DIRECT COPOLYCONDENSATION IN THE ABSENCE OF CATALYSTS, AND ENZYMATIC DEGRADATION OF THE POLYMERS [J].
FUKUZAKI, H ;
YOSHIDA, M ;
ASANO, M ;
KUMAKURA, M ;
MASHIMO, T ;
YUASA, H ;
IMAI, K ;
YAMANAKA, H .
POLYMER, 1990, 31 (10) :2006-2014