Stereospecific Radical Polymerization of Substituted Benzyl Muconates in the Solid State Under Topochemical Control
作者:Akikazu Matsumoto、Toshihiro Tanaka、Kunio Oka
DOI:10.1055/s-2005-865320
日期:——
We have successfully controlled the stereochemical structure of diene polymers during radical polymerization in the solid state under UV and γ-ray radiation. The polymerization of the substitutedbenzyl muconates occurredvia a crystal lattice controlled reaction mechanism. The polymerization is controlled by not only diisotactic and disyndiotactic, but also meso and racemo structures to afford various
Orientational Control of Guest Molecules in an Organic Intercalation System by Host Polymer Tacticity
作者:Shinya Oshita、Akikazu Matsumoto
DOI:10.1002/chem.200500771
日期:2006.3.1
acid)s, which are synthesized by topochemical polymerization and subsequent solid-state hydrolysis, are used as the organichost materials for intercalation. We describe the reaction behavior and layered structure of intercalation compounds using stereoregular poly(muconic acid)s and n-alkylamines as host and guest, respectively. The packing structure of the guest alkylamines was determined by X-ray diffractions
First Disyndiotactic Polymer from a 1,4-Disubstituted Butadiene by Alternate Molecular Stacking in the Crystalline State
作者:Toshihiro Tanaka、Akikazu Matsumoto
DOI:10.1021/ja020615r
日期:2002.8.1
We report the first synthesis of a disyndiotactic polymer through topochemical polymerization using di(4-methoxybenzyl)muconate as the 1,3-diene dicarboxylate monomer. It provides a tritactic polymer under photoirradiation in the crystalline state, as a result of the alternate molecular stacking in a column formed in the crystals with aid of weak hydrogen bonds such as CH/pi and CH...O intermolecular interactions.