کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1987458 1540288 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biomaterials based on new polyurethane and hydrolyzed collagen, k-elastin, hyaluronic acid and chondroitin sulfate
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Biomaterials based on new polyurethane and hydrolyzed collagen, k-elastin, hyaluronic acid and chondroitin sulfate
چکیده انگلیسی

In this paper biomaterials based on various polyurethane formulations have been physically characterized by FT-IR spectroscopy, contact angle measurements, DSC, TG/DTG and SEM methods. It has been established that the transition temperatures of soft and hard segments of polyurethane (glass transition or melting) depend on the blend composition. The melting temperature varies from 54.2 to 81.9 °C for soft segments, and from 220 to 235 °C for hard segments. FT-IR spectrometry allows identifying the functional groups involved in interactions and consequently the changes in polymer chain mobility. From SEM images, is evident that polyurethanic film is porous and spongious. By adding of the others components such as hydrolyzed collagen, elastin, chondroitin sulfate or hyaluronic acid, a reduction of porosity of films was obtained.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 47, Issue 5, 1 December 2010, Pages 646–653
نویسندگان
, , , , ,