Functionalization of cellulose nanocrystals extracted from pineapple leaves as a UV-absorbing agent in poly(lactic acid).

The cinnamate functionalization of cellulose nanocrystals (Cin-CNCs) was investigated as a potential organic reinforcing and UV-shielding agent in polylactic acid (PLA) films. Acid hydrolysis was used to extract cellulose nanocrystals (CNCs) from pineapple leaves. Through esterification with cinnamoyl chloride, the cinnamate group was grafted onto the CNC surface and the resulting Cin-CNCs were incorporated in PLA films as reinforcing and UV-shielding agents.

Oxidative coupling of methane-comparisons of MnTiO-NaWO and MnO-TiO-NaWO catalysts on different silica supports.

The oxidative coupling of methane (OCM) converts CH to value-added chemicals (C), such as olefins and paraffin. For a series of MnTiO-NaWO (MnTiO-NW) and MnO-TiO-NaWO (Mn-Ti-NW), the effect of loading of MnTiO or MnO-TiO, respectively, on two different supports (sol-gel SiO (SG) and commercial fumed SiO (CS)) was examined. The catalyst with the highest C yield (21.