Angewandte Chemie International Edition · 2002 · 73 citations · 0 references
Natural SciencesChemical EngineeringChemistryOrganic ChemistryPolymer ChemistryPolymer MaterialsPolymer PhysicsPolymer ProductionPolymer SynthesisPolymerization ChemistryPolymerization ProcessesChemical PolymerizationCrystal Packing DensityCrystal Packing GeometryHeat PolymerizationPolymerization MechanismsPolymerization ReactionsThermal PolymerizationTopochemical Reactions
The difference in the crystal-packing mode of a monomer can significantly affect its polymerization reactivity. Synthesis of 7,7,8,8-tetrakis(methoxycarbonyl)quinodimethane (1) afforded two polymorphs: prisms (1 a), and needles (1 b). The former, 1 a, polymerized topochemically under thermal polymerization and photopolymerization (see scheme) but 1 b did not.