NEW BIOMEDICAL POLYURETHANE UREAS WITH HIGH TEAR STRENGTHS

Authors
DEGROOT JH DEVRIJER R WILDEBOER BS SPAANS CS PENNINGS AJ
Citation
Jh. Degroot et al., NEW BIOMEDICAL POLYURETHANE UREAS WITH HIGH TEAR STRENGTHS, Polymer bulletin, 38(2), 1997, pp. 211-218
Citations number
21
Categorie Soggetti
Polymer Sciences
Journal title
Polymer bulletin → ACNP
ISSN journal
01700839
Volume
38
Issue
2
Year of publication
1997
Pages
211 - 218
Database
ISI
SICI code
0170-0839(1997)38:2<211:NBPUWH>2.0.ZU;2-P
Abstract
Biodegradable polyurethanes ureas (PUU) were synthesized by a two step polymerization. First a poly (epsilon-caprolactone) prepolymer was te rminated with three different diisocyanates: lysinediisocyanate (LDI), 1,6-hexanediisocyanate (HDI) and 1,4-butanediisocyanate (BDI). Second the prepolymers were chain extended with 1,4-butanediamine. The degra dation products of these polymers are non-toxic. The mechanical proper ties of the PUU are compared with those of three PU's. Compared to the se PU's, the HDI and BDI based PUU showed a very high resistance to te aring.