Enhancement of the mechanical properties of polylactides by solid-state extrusion: I. Poly(D-lactide)

Biomaterials

Volumn 17, Issue 5, 1996, Pages 529-535

  Weiler, Walter ^a   Gogolewski, Sylwester ^a  

^a AO RESEARCH INSTITUTE   (Switzerland)

Author keywords

Mechanical properties; Morphology; Poly(D lactide); Polylactides; Solid state extrusion

Indexed keywords

BENDING STRENGTH; EXTRUSION; MECHANICAL TESTING; MORPHOLOGY; POLYMERS; THERMAL EFFECTS;

POLYLACTIDES; SOLID STATE EXTRUSION;

BIOMATERIALS;

POLYLACTIDE;

ARTICLE; MECHANICS; PRIORITY JOURNAL; TEMPERATURE; TENSILE STRENGTH; YOUNG MODULUS;

BIOCOMPATIBLE MATERIALS; BIOMECHANICS; CALORIMETRY, DIFFERENTIAL SCANNING; CRYSTALLIZATION; HEAT; INTERNAL FIXATORS; MICROSCOPY, ELECTRON, SCANNING; MOLECULAR WEIGHT; POLYESTERS; POLYMERS; SURFACE PROPERTIES; VISCOSITY;

EID: 0030111465     PISSN: 01429612     EISSN: None     Source Type: Journal    
DOI: 10.1016/0142-9612(96)82728-1     Document Type: Review

References (22)

1. Perren SM, Gogolewski S. Clinical requirements for bioresorbable implants in internal fixation. In: Leung KS, Hung LK, Leung PC, eds. Biodegradable Implants in Fracture Fixation. Hong Kong: Department of Orthopedics and Traumatology, The Chinese University of Hong Kong and World Scientific Publishing Co. Pte. Ltd, 1994: 35-44.
2. Gogolewski S. Resorbable materials in orthopedic surgery. In: Walter D, Zimmerman W, eds. Die Plattenosteosynthese und ihre Konkurrenzverfahren. Berlin: Springer Verlag, 1991: 340-349.
3. Daniels AU, Chang MKO, Andriano KP. Mechanical properties of biodegradable polymers and composites proposed for internal fixation of bone. J Appl Biomater 1990; 1: 57-80.
4. Engelberg I, Kohn J. Physico-mechanical properties of degradable polymers used in medical application: a comparative study. Biomaterials 1991; 12: 292-304.
5. Gogolewski S, Jovanovic M, Perren SM. The effect of melt-processing on the degradation of selected polyhydroxyacids: polylactides, polyhydroxybutyrate, and polyhydroxybutyrate-co-valerates. Polym Deg Stab 1993; 40: 313-322.
6. Gogolewski S, Pennings AJ. Resorbable materials of poly(L-lactide). II. Fibers spun from solutions of poly(L-lactide) in good solvents. J Appl Polym Sci 1983; 28: 1045-1061.
7. Gibson AG, Ward IM. Hydrostatic extrusion of linear polyethylene: Effects of molecular weight and product diameter. J Polym Sci Polym Phys Edn 1978; 16: 2015-2030.
8. Zachariades AE, Mead WT, Porter RS. Recent developments in ultraorientation of polyethylene by solid-state extrusion. Chem Rev 1980; 80: 351-364.
9. Coates PD, Ward IM. Drawing of polymers through a conical die. Polymer 1979; 20: 1553-1560.
10. Coates PD, Ward, IM. Hydrostatic extrusion of polyoxymethylene. J Polym Sci Polym Phys Edn 1978; 16: 2031-2047.
11. Mitchell DJ, Porter RS. Characterization of poly(ethylene oxide) drawn by solid-state extrusion. Macromolecules 1985; 18: 1218-1221.
12. Gogolewski S. The effect of hydrogen bonding on solid-state extrusion of nylons: Polycaproamide and polyundecaneamide. Technol Rep 1979; 4: 1-27.
13. Gogolewski S. Unpublished results.
14. Gogolewski S, Jovanovic M, Perren SM, Dillon JG, Hughes MK. Tissue response and in vivo degradation of selected polyhydroxyacids: Polylactides (PLA), poly(3-hydroxybutyrate) (PHB), and poly(3-hydroxybutyrate-co-3-hydroxyvaleriate) (PHB/VA). J Biomed Mater Res 1993; 27: 1135-1148.
15. Fischer EW, Sterzel HJ, Wagner G. Investigation of the structure of solution grown crystals of lactide copolymers by means of chemical reactions. Kolloid-Z Z Polymere 1973; 251: 980-990.
16. Schindler A, Harper D. Polylactide. II. Viscosity-molecular weight relationships and unperturbed chain dimensions. J Polym Sci Polym Chem Edn 1979; 17: 2593-2599.
17. Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulations Material. ASTM D790. In: ASTM Standards. Philadelphia, PA: American Society for Testing and Materials 1984; 08.01 410-421.
18. Gogolewski S. Effect of annealing on thermal properties and crystalline structure of polyamides. Nylon 11 (polyundecaneamide). Colloid Polym Sci 1979; 257: 811-819.
19. Gogolewski S, Mainil-Varlet P. The effect of thermal treatment on sterility, molecular and mechanical properties of various polylactides. I. Poly(L-lactide). Biomaterials 1996; 17: 523-528.
20. Clark ES, Scott LS. Polym Eng Sci 1974; 14: 682.
21. Dismore PF, Statton WO. Chain folding in oriented nylon 66 fibers. J Polym Sci 1966; C13: 133-148.
22. Matsusue Y et al. In vitro and in vivo studies on bioabsorbable ultra-high-strength poly(L-lactide) rods. J Biomed Mater Res 1992; 26: 1553-1567.