Production of 2‐hydroxyethyl methacrylate‐g‐poly(ethylene terephthalate) nanofibers by electrospinning and evaluation of the properties of the obtained nanofibers

Abstract

Nanofiber production was investigated from poly(ethylene terephthalate) (PET) polymers functionalized with hydroxyethyl methacrylate (HEMA) by grafting of HEMA monomers onto the PET fibers. HEMA grafted PET (PET‐g‐HEMA) copolymers were analyzed by scanning electron microscopy, Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy. PET and PET‐g‐HEMA were dissolved in trifluoroacetic acid and nanofibers were obtained by electrospinning. It was found that the PET and PET‐g‐HEMA polymers having grafting yield 20 and 55% could be converted to continuous, smooth, and beadles nanofibers. For characterization of the nanofiber membranes, thermogravimetric analysis, differential scanning calorimeter analysis, surface contact angle measurement, porosity analysis, and mechanical tests were applied. When compared with the original PET nanofibers, the thermal properties and degradation process of PET‐g‐HEMA nanofibers changed according to the amount of HEMA present in the structure of nanofibers. The contact angles of the nanofibers obtained from PET‐g‐HEMA polymers decreased whereas the water retention ability of the nanofibers increased compared to original PET nanofibers. The porosity of PET‐g‐HEMA nanofibers was found be high compared to PET nanofibers and whereas the mechanical properties of PET was higher than PET‐g‐HEMA nanofibers. The obtained nanofibers can be used in many fields such as biomaterial applications.

Deposition of Copper on Polyester Knitwear Fibers by a Magnetron Sputtering System. Physical Properties and Evaluation of Antimicrobial Response of New Multi-Functional Composite Materials

“…Moreover, due to its own porosity PET is conducive to microbial adhesion and subsequent bacteria colonization [16]. Therefore, for improvement of antimicrobial properties PET was subjected to several surface modification technologies [17,18], the majority based on functionalization [19,20], grafting [21][22][23][24][25][26][27][28], surface topography modification [29][30][31][32][33], coating [34][35][36][37] and their combinations [38][39][40].…”

Etilen Oksit Sterilizasyonunun PEEK Bazlı Dental İmplantın Kimyasal Yapısı Üzerine Etkisi

“…Bu durum polimerik malzemenin fiziksel ve mekanik özelliklerinin değişmesine neden olur. FTIR, polimerik malzemelerin kimyasal bağ değişikliklerini belirlemek için önemli bilgiler sağlar (Gün Gök et al, 2020). Non-steril ve steril PEEK dental implantların FT-IR spektrumları Şekil 4'te gösterilmiştir.…”

Multilayer Methacrylate-Based Wound Dressing as a Therapeutic Tool for Targeted Pain Relief

“…Although PHEMA and PHPMA lack the natural biological activity of natural polymers such as collagen, which can be important in promoting cell adhesion and proliferation, their surface can be easily modified or charged to promote cell attachment or differentiation [ 21 , 22 , 23 ]. In addition, they also have a cooling and soothing effect, which is desirable in the pain management of skin injuries [ 8 , 24 , 25 , 26 ].…”

“…It allows the production of well-organised mono- and multilayer films over large areas with smooth and homogeneous surfaces. In addition, it can be performed under ambient conditions, making it one of the most effective and easiest methods for developing novel coatings for medical implants, medical devices, and wound dressings [ 7 , 25 , 27 , 28 , 29 ]. Multilayer and multifunctional wound dressings, especially those manufactured using the layer-by-layer (LbL) technique, have been available for comprehensive wound care for some time.…”