title: Oxidative polymerization of 1,4-diethynylbenzene into highly conjugated poly(phenylene butadiynylene) within the channels of surface-functionalized mesoporous silica and alumina materials.
abstract: A polyalkynylene-based conducting polymer (molecular wire) has been synthesized within the Cu-functionalized mesoporous MCM-41 silica catalyst. Fluorescence and 13C solid-state NMR provided spectroscopic evidence that the synthesis of extended polymeric chains with a high degree of alignment requires homogeneously distributed catalytic sites throughout the entire MCM matrix. This type of homogeneity has been achieved via co-condensation of the catalytic groups in narrow pores. In addition, our results indicated that proper adjustment of the pore diameter is vital to prevent clogging of the pores with aggregated or cross-linked polymers or both.
authors.affiliation: Department of Chemistry, and Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA. vsylin@iastate.edu
authors.forename: Victor S-Y
authors.initials: VS
authors.lastname: Lin
authors.forename: Daniela R
authors.initials: DR
authors.lastname: Radu
authors.forename: Mi-Kyung
authors.initials: MK
authors.lastname: Han
authors.forename: Weihua
authors.initials: W
authors.lastname: Deng
authors.forename: Shigeki
authors.initials: S
authors.lastname: Kuroki
authors.forename: Brent H
authors.initials: BH
authors.lastname: Shanks
authors.forename: Marek
authors.initials: M
authors.lastname: Pruski