,  provided direct evidence of depletion hole of the functionalized chains at an interface by studying the coupling reaction
between deuterated hydrozy terminated PS (dPS-OH) and methyl methacrylate and methacrylic acide copolymer (PMMA-MAA) at a relatively low temperature of 120[degrees]C.
Ideally, the coupling reaction
between silica particles and the rubber network should take place during the tire's molding process.
The development of water-soluble phosphine ligands for coupling reaction
has been an expanding area of research over the past several years.
Sodium naphthionate (3) was connected with diazo of benzidine (2) at low temperature, which was maintained throughout the completion of coupling reaction
. The pH of reaction was maintained at 8.0 and the completion of the reaction was monitored by taking TLC of reaction mixture in ethyl acetate: ethanol 1:1 system.
Compared with adding premade copolymers, in situ reactive compatibilization through coupling reaction
between the functional polymers has become dominant route to improve the compatibility between immiscible polymer blends due to higher compatibilizing efficiency and lower cost (1-5).
General Procedure for Photocatalytic Coupling Reaction
Via Ruthenium Metal Complex.
From our earlier work on the synthesis of a 3-dodecyl-substituted PTV (RR-[C.sub.12]-PTV) via Horner-Emmons reaction as well as Stille coupling reaction
, we learned that PTV from the Stille reaction was neither regioregular nor structurally free of defect.
The strong interaction caused by the coupling reaction
could improve the dispersity effect of the palygorskite in the cis-polybutadiene rubber matrix, and the corresponding properties of the resulting nanocomposites are also systematically investigated.
These defects result from the happening of head-to-head (or tail-to-tail) coupling reaction
, instead of regular head-to-tail one, during the polymerization reaction.
PMS was prepared by the reductive coupling reaction
of methyldichlorosilane with sodium metal in toluene under nitrogen atmosphere.
Homolytic benzylation and oxidative coupling reaction
," Journal of Chemistry, vol.
The torque increase, on the other hand, can partially result from the PBT coupling reaction
but also from branching/crosslinking of the siloxane phase, as was the case for the SiH-functional siloxane.