摘要:
The present disclosure relates to a modified conjugated diene-based polymer having excellent affinity with a filler, a method for preparing the same, a rubber composition including the same and a tire manufactured using the rubber composition. The modified conjugated diene-based polymer according thereto has a tin-based compound-derived group bind on one end, and a silane-based compound-derived group bind on the other end, and therefore, may have excellent affinity with a carbon black-based filler as well as a silica-based filler. Accordingly, a rubber composition including the modified conjugated diene-based polymer may have excellent processability, and as a result, processed goods (for example, tires) manufactured using the rubber composition may have excellent tensile strength, wear resistance and viscoelastic property.
摘要:
Highly mesoscopically ordered, hydrothermally stable and ultra large pore size metal oxide-block copolymer composite or mesoporous films, fibers, and monoliths are formed using amphiphilic block copolymers which act as structure directing agents for the metal oxide in a self-assembling system.
摘要:
A melt process for the synthesis of poly(metal aromatic esters) resins is provided. The process provides volatile byproducts which can be easily separated from the desired poly(metal aromatic ester) resin product. The poly(metal aromatic ester) resins are particularly useful as polymer additives for the purpose of such things as scavenging traces of water, activating sulphur accelerator crosslinking systems, and producing intumescent and polyester/metal oxide formulations.
摘要:
Dispositif à membrane pour filtration, séparation ou réaction catalytique comportant un bloc macroporeux percé de canaux longitudinaux parallèles, dont la surface est recouverte d'une membrane de porosité plus fine que celle du bloc. Selon l'invention la porosité des deux extrémités dudit bloc est remplie d'un matériau dense (3) formé par un polycondensat organo-minéral mono ou polymétallique ayant subi un traitement thermique, ce type de condensat étant connu sous le nom de ORMOSIL (organically modified silicate) ou ORMOCER (organically modified ceramic).