Tawfic, Medhat L. published the artcileNatural abundant prodegradant for Oxo-degradation of polymers, Recommanded Product: Pentane-1,5-diol, the publication is Journal of Polymer Research (2022), 29(2), 60, database is CAplus.
In the present study, novel polypentane maleate (PPM)/linear low-d. polyethylene (LLPE) composites for potential medical disposables application as biodegradable pads were prepared Polypentane maleate as biodegradable polyester was prepared by adding stoichiometric amounts of maleic acid and pentane diol in presence of titanium tetrabutoxide as a catalyst. FT-IR, 1HNMR and GPC were performed to elucidate the chem. structure of the prepared polymer. Preparation of oxo-degradable polymers (OBP) were achieved by compounding PPM, cellulosic fibers (CF) and LLPE. Synthetic prodegradant such as benzophenone and promising natural prodegradant such as extracted chlorophyll were added to the prepared composites. The polymeric composites were exposed to UV irradiation for different period to evaluate their oxo-degradation behavior. Carbonyl indexes were calculated for oxo-degradable polymers using FT-IR spectroscopy. Furthermore, X- Ray diffraction and differential scanning calorimetry (DSC) were conducted to follow up the crystallinity of the prepared samples. Mech. properties for polymeric composites were evaluated before and after UV exposure. Morphol. of the polymeric composites was investigated by scanning electron microscope. DSC anal. showed that chlorophyll enhances the decrease of crystallinity rather than benzophenone. As well as, mech. results revealed that chlorophyll lowers tensile strengths after 20 days of UV exposure less than in case of benzophenone. These results confirm that chlorophyll is efficient prodegradant.
Journal of Polymer Research published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C7H10O4, Recommanded Product: Pentane-1,5-diol.
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