Polyethylene characterization by FTIR

Additive Manufacturing of PE/Fluorouracil Waffles for Implantable Drug Delivery in Bone Cancer Treatment

“…The FU spectrum demonstrated absorption peaks characteristic of this compound and in agreement with the literature [25]. The =C-H stretching of fluorouracil resulted in an absorption band in the 3100-3000 cm−1 region.…”

“…The stretching bands of C=N and C=C bonds in the ring were verified in the 1580-1650 cm−1 region, while the vibration of C=O bond correspond to the absorption peak at 1724 cm−1 [25]. Additional bands at 1450 cm−1 and 1350 cm−1 are characteristic of substituted pyrimidine compounds as well as the peaks at 1180 cm−1 and 1251 cm−1, which were associated with C-O and C-N bond frequencies, respectively [25]. The fluorine bond (C-F) also resulted in absorption at 1230 cm−1 and in the 820-550 cm−1 region [20].…”

“…On the other hand, polyethylene (PE) is a bio-inert olefin approved by FDA for use in the human body as a medical device. Drug delivery systems using PE have been proposed due to its biocompatibility and resistance to the biological environment [25,26]. The drug can be physically mixed with this polymer and then delivered to the surrounding environment via diffusion.…”

Improving the bonding between henequen fibers and high density polyethylene using atmospheric pressure ethylene-plasma treatments

“…The appearance of the peaks at 2940 cm -1 (asymmetric stretching) and 2840 cm -1 (symmetric stretching), the peak at 1460 cm -1 (bending) and the peak at 750 cm -1 (rocking deformation) of methylene group (-CH 2 -) suggest the presence of a hydrocarbon film on the henequen fiber surface. Moreover, the peaks at 3030, 1605 and at 905 cm -1 could be attributed to the existence of vinyl groups in the deposited film [35,36]. Tibbit et al [37], Donohoe and Wydeven [38], Oran et al [39] and Swaraj et al [40] have pointed out that the plasma polymerization of ethylene yields a plasma-polyethylene polymer with different structural characteristics with respect to that obtained with conventional methods.…”

Characterization of LDPE Reinforced with Calcium Carbonate—Fly Ash Hybrid Filler

“…This is in agreement with the XRD results which show that the sample in question contain a higher amount of CC (45 wt%) and therefore seem to dominate the structure. The strong CH 2 asymmetric stretching at 2920 cm −1 , the CH 2 symmetric stretching at 2850 cm −1 and the CH 3 symmetric deformation are characteristic peaks of polyethylene [31] [32]. The presence of Si-O-Si stretch is noticed at 1070 cm −1 with weak absorbance (0.02; see Figure 11).…”