A novel method for the characterization of polymers by laser desorption/ionization on the layer of graphene nanoparticles coupled with time-of-flight mass spectrometry was demonstrated. Various polymers including polypropylene glycol, polystyrene and polymethyl methacrylate with average molecular weights from 425 to 3500 Da were analyzed.

Graft copolymerization of binary vinyl monomers onto mercerized flax fiber was carried out for the enhancement of mechanical properties of polystyrene composites. Binary vinyl monomer mixture of AA+AN has been found to show maximum grafting (33.55%) onto mercerized flax. Graft copolymers thus synthesized were characterized with FT-IR spectroscopy, SEM, and TGA techniques. Mercerized flax (MF) s...

Propene-hexene copolymers crystallize in a new polymorphic form of isotactic polypropylene when the concentration of hexene is higher than nearly 10-15 mol %. The hexene units are included in the crystals, inducing an increase of density that allows crystallization of 3-fold helical chains in a trigonal unit cell according to the space group R3c or Rc, where the helical symmetry of the chains i...

Bonding of hydrophobic plastic materials to wood to create new wood-plastic (polystyrene) materials with improved mechanical and physical properties that incorporate the desirable features of each constituent is difficult to achieve, This is due to poor interfacial adhesion between the wood and polystyrene components because of their inherent incompatibility. New, well-defined, tailored cellulo...

This work aims to establish a production and characterization protocol for fluorescent plastic nanoparticles of poly(ethylene terephthalate) (PET), polypropylene (PP), polystyrene (PS) that can be tracked in biological environments.

The research aims to utilize polyethylene (PET), polypropylene (PP) and polystyrene (PS) plastic waste into liquid fuel by the pyrolysis process, currently, especially in Surabaya, a lot of waste, 13% - 14% is plastic. results sample from this study are distinguish temperature steam entering condenser also water condenser. And what will later be tested that oil close type gasoline or diesel. fo...

Removal of a temporary atrial epicardial pacemaker electrode damaged a saphenous vein graft. A new blood clot was removed from the damaged graft. The hole was successfully repaired with a polypropylene suture. Pacing wires should be carefully sited and should be removed only when facilities for urgent operation are available.

An efficient procedure to produce polyethene–graft–polystyrene (E-C3–graft–PS) copolymers by simple thermal treatment at 200 1C of polyethene (PE)-containing cyclopropane ring units (E-C3) in the presence of a high excess of styrene is reported. The high treatment temperature likely induces the breaking of the constrained cyclopropane rings, leading to the formation of radicals on the PE chains...