Bicyclo[1.1.1]pentane (BCP) motifs are of growing importance to the pharmaceutical industry as sp3-rich bioisosteres benzene rings and molecular building blocks in materials science. Herein we explore behavior 1,3-disubstituted BCP moieties on metal surfaces by combining low-temperature scanning tunneling microscopy / non-contact atomic force studies with density functional theory modeling. We ...

This work consists in investigating the influence of structural changes induced by annealing, such as presence a rigid amorphous fraction (RAF) and crosslinking, on mechanical properties polyphenylene sulfide (PPS) fracture behavior (particularly tenacity) Carbon/PPS laminated composite. The first part study aimed at obtaining PPS samples with different amounts RAF, determining conditions poten...

In this study, ion exchange nanocomposite membranes was prepared by addition of Mg(OH)2 nanoparticles to a blend containing sulfonated polyphenylene oxide and sulfonated polyvinylchloride via a simple casting method. Magnesium hydroxide nanoparticles were synthesized via a facile sono-chemical reaction and were selected as filler additive in fabrication of ion exchange nanocomposite membranes. ...

This paper investigated the effects of combining fibers with self-consolidating concrete (SCC). 12 series of test specimens were prepared using three kinds of fibers including steel, polyphenylene sulfide (PPS) and glass fibers with four different volumes fractions and one specimen without fibers as a reference sample. All plans were subjected to fresh concrete tests. For mechanical behavior of...

Abstract Ubiquitous use of electronic devices has led to an unprecedented increase in related waste as well the worldwide depletion reserves key chemical elements required their manufacturing. The biodegradable and abundant organic (carbon-based) materials can contribute alleviate environmental impact industry. pigment eumelanin is a bio-sourced candidate for environmentally benign (green) elec...

Considering their increasing use in high-temperature aeronautical applications, thermoplastic-based laminates have to meet certification requirements terms of critical service conditions (e.g. aircraft engine's fire). This work is aimed at identifying the most relevant approach model isothermal decomposition C/PPS composites. The first step understanding thermal these materials relies on TGA an...