Oxygen-functionalized propylene elastomers add hydrophilicity and softness to polyalphaolefins without costly post-reactor grafting.
A process converts phthalocyanine ammonium salts to chlorides using ion exchange resin treatment.
Cationic and anionic porphyrins self-assemble into clover-like nanostructures with controlled four-fold dendritic morphologies.
Anionic groups in the 16-membered ring chelate maintain charge balance, preventing metal dissociation and reducing toxicity while preserving imaging contrast.
Metal catalysts convert nitroxyl radicals to ethers with high selectivity, eliminating dimeric by-products.
Surfactant micelles template porphyrin self-assembly, resolving poor dimensionality control in traditional methods.
Alpha-aryl iodonio diazomethyl derivatives replace unstable reagents to enable single-step aromatic C-H bond functionalization.
Tri-hydrocarbyl phosphate mediates polar carboxylic acid groups with hydrocarbon solvents to boost concentration beyond standard limits.
Mechanical brushing removes solid molybdenum oxide deposits from reactor tubes, preventing abrasive damage to walls and preserving catalyst selectivity.