Organotitanium(IV) compounds as catalysts for the polymerization of isocyanates: the polymerization of isocyanates with functionalized side chains
Catalysts of the form CpTiCl sub(2)X where X = -OCH sub(2) CF sub(3), -N(CH sub(3)) sub(2), or -CH sub(3)(IIa, IIb, IIc; were used to polymerize a variety of isocyanates. Titanium-alkoxide, -amide and -alkyl bonds were all found to be active in initiating the insertion of isocyanate monomer. The pol...
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| Veröffentlicht in: | Macromolecules 1993-02, Vol.26 (3), p.436-439 |
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| container_title | Macromolecules |
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| creator | Patten, Timothy E Novak, Bruce M |
| description | Catalysts of the form CpTiCl sub(2)X where X = -OCH sub(2) CF sub(3), -N(CH sub(3)) sub(2), or -CH sub(3)(IIa, IIb, IIc; were used to polymerize a variety of isocyanates. Titanium-alkoxide, -amide and -alkyl bonds were all found to be active in initiating the insertion of isocyanate monomer. The polymerization of highly functionalized monomers is possible using IIa-c. 2-Isocyanatoethyl methacrylate(2IEM) was polymerized using IIb, through the isocyanate group to a linear polymer. The use of cyclopentadienyltitanium trichloride derivatives also provides a general route through which a wide variety of end groups may be incorporated onto the end of the polyisocyanate chain. |
| doi_str_mv | 10.1021/ma00055a005 |
| format | Article |
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Titanium-alkoxide, -amide and -alkyl bonds were all found to be active in initiating the insertion of isocyanate monomer. The polymerization of highly functionalized monomers is possible using IIa-c. 2-Isocyanatoethyl methacrylate(2IEM) was polymerized using IIb, through the isocyanate group to a linear polymer. 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Titanium-alkoxide, -amide and -alkyl bonds were all found to be active in initiating the insertion of isocyanate monomer. The polymerization of highly functionalized monomers is possible using IIa-c. 2-Isocyanatoethyl methacrylate(2IEM) was polymerized using IIb, through the isocyanate group to a linear polymer. 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Titanium-alkoxide, -amide and -alkyl bonds were all found to be active in initiating the insertion of isocyanate monomer. The polymerization of highly functionalized monomers is possible using IIa-c. 2-Isocyanatoethyl methacrylate(2IEM) was polymerized using IIb, through the isocyanate group to a linear polymer. The use of cyclopentadienyltitanium trichloride derivatives also provides a general route through which a wide variety of end groups may be incorporated onto the end of the polyisocyanate chain.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><doi>10.1021/ma00055a005</doi><tpages>4</tpages></addata></record> |
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| ispartof | Macromolecules, 1993-02, Vol.26 (3), p.436-439 |
| issn | 0024-9297 1520-5835 |
| language | eng |
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| source | American Chemical Society Journals |
| subjects | 400201 - Chemical & Physicochemical Properties Applied sciences CATALYSIS CATALYTIC EFFECTS CHEMICAL BONDS CHEMICAL PROPERTIES CHEMICAL REACTIONS Exact sciences and technology INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY ISOCYANATES MOLECULAR STRUCTURE ORGANIC COMPOUNDS Organic polymers ORGANOMETALLIC COMPOUNDS Physicochemistry of polymers POLYMERIZATION Preparation, kinetics, thermodynamics, mechanism and catalysts TITANIUM COMPOUNDS TRANSITION ELEMENT COMPOUNDS |
| title | Organotitanium(IV) compounds as catalysts for the polymerization of isocyanates: the polymerization of isocyanates with functionalized side chains |
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