title: Polymerization of racemic beta-butyrolactone using supported catalysts: a simple access to isotactic polymers.
abstract: Grafting of [Ln(BH(4))(3)(THF)(3)] (Ln = La, Nd) onto silica affords materials containing well-identified bis(borohydride) surface species. The neodymium-decorated silica converts the beta-butyrolactone monomer into highly isotactic poly(beta-hydroxybutyrate). Under similar conditions, the molecular precursor gives rise to an atactic polymer.
authors.affiliation: University of Minnesota, Minneapolis, MN 55455-0431, USA.
authors.forename: Noureddine
authors.initials: N
authors.lastname: Ajellal
authors.forename: Guillaume
authors.initials: G
authors.lastname: Durieux
authors.forename: Laurent
authors.initials: L
authors.lastname: Delevoye
authors.forename: Grégory
authors.initials: G
authors.lastname: Tricot
authors.forename: Christophe
authors.initials: C
authors.lastname: Dujardin
authors.forename: Christophe M
authors.initials: CM
authors.lastname: Thomas
authors.forename: Régis M
authors.initials: RM
authors.lastname: Gauvin
mesh_terms: D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000737:chemistry; D001894:Borohydrides / Q000737:chemistry; D002384:Catalysis; D006885:Hydroxybutyrates / Q000138:chemical synthesis* / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry; D011091:Polyesters / Q000138:chemical synthesis* / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013237:Stereoisomerism; D000094122:Polyhydroxybutyrates
chemical_list: D015107:4-Butyrolactone; D001894:Borohydrides; D006885:Hydroxybutyrates; D028581:Lanthanoid Series Elements; D011091:Polyesters; D012822:Silicon Dioxide; C003182:poly-beta-hydroxybutyrate; D000094122:Polyhydroxybutyrates; C013426:beta-butyrolactone