| Full text | |
| Author(s): |
Kloss, J.
;
Bugay, C.
;
Akcelrud, L.
;
Zawadzki, S. F.
;
Wang, S. H.
[5]
Total Authors: 5
|
| Document type: | Journal article |
| Source: | POLIMEROS-CIENCIA E TECNOLOGIA; v. 15, n. 1, p. ^15, 2005. |
| Field of knowledge: | Engineering - Materials and Metallurgical Engineering |
| Abstract | |
Segmented polyurethanes containing polycaprolactone as soft segment were prepared taking into account the biodagradable character of this compound. The hard block was produced by the reaction between tolylene diisocyanate and a chain extender (1,4 butanediol, sucorse or glucose). The mechanical and dynamical properties were evaluated as a function of the contents of rigid blocks. The results were analyzed on the basis of the intermolecular interactions mainly H bonds, phase mixture, volume of eyelie chain extendres and crosslinking. These polyurethanes are being studied aiming at the preparation of biodegradable materials with useful mechanical properties. (AU) | |