img
Radiation Grafting of Various Water soluble Monomers on Ultra high Molecular Weight Polyethylene Powder Part II Thermal FTIR and Morphological Characterisation   
Yazarlar
Prof. Dr. Bahattin AYDINLI
Kastamonu Üniversitesi, Türkiye
İsmail Teoman Tincer
Orta Doğu Teknik Üniversitesi, Türkiye
Özet
Radiation induced grafted polyacrylic acid (PAA), polymethacrylic acid (PMAA), polyacrylamide (PAAm), poly N,N-dimethyl acrylamide (PNDAAm) and poly 1-vinyl-2 pyrrolidone (PVP) on ultra-high molecular weight polyethylene (UHMWPE) were characterised by DSC, FTIR and SEM analysis. While the effect of irradiation on pure UHMWPE was found to increase crystallinity and cause higher enthalpy of crystallisation, grafted UHMWPE powders showed lower crystallinity and enthalpy of crystallisation. In all grafted UHMWPE there existed secondary transitions corresponding to grafting polymers in the first run of DSC above 60°C and they became clearer at a higher grafting level. In the second run of DSC some Tg values appeared to shift to higher temperatures while some were not detected. FTIR analysis indicated the presence of water-soluble polymers in the grafted UHMWPE. The characteristic peaks of water-soluble polymers became sharper in the grafted UHMWPE. SEM analysis revealed that the grafting occurs both on fiber and microparticles of UHMWPE while flowing characteristic of powder is retained. © 2001 Elsevier Science Ltd. All rights reserved.
Anahtar Kelimeler
FTIR | Grafted UHMWPE | Morphological characterisation | Thermal analysis | Water-soluble monomer
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Radiation Physics and Chemistry
Dergi ISSN 0969-806X
Dergi Tarandığı Indeksler SSCI
Makale Dili İngilizce
Basım Tarihi 01-2001
Cilt No 62
Sayı 62
Sayfalar 337 / 343
Doi Numarası 10.1016/S0969-806X(01)00206-7
Makale Linki www.elsevier.com/locate/radphyschem