Copolymerization of Chlorocyclotriphosphazene Derivatives Containing the Methacycloylbutenedioxy and <Emphasis Type="Italic">N</Emphasis>-(Ferrocenylmethyl)-<Emphasis Type="Italic">N</Emphasis>-Methylamino Substituents with Methylmethacrylate期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Copolymerization of Chlorocyclotriphosphazene Derivatives Containing the Methacycloylbutenedioxy and N-(Ferrocenylmethyl)-N-Methylamino Substituents with Methylmethacrylate

Authors:

Charles N. Myer Christopher W. Allen

Affiliation:

(1) Department of Chemistry, University of Vermont, Cook Physical Science Bldg, 82 University Place, Burlington, VT 05405-0125, USA

Abstract:

The mixed substituent chlorocyclophosphazene monomers 2,2^′-N₃P₃Cl₄[O(CH₂)₄OC(O)C(Me)CH₂][C₅H₅FeC₅H₄CH₂NMe](1) and 2,2^′,4-N₃P₃Cl₃[O(CH₂)₄OC(O)C(Me)CH₂][C₅H₅FeC₅H₄CH ₂NMe]₂ (2) undergo radical addition copolymerization with methylmethacrylate to produce a broad range of copolymers having pendant cyclophosphazenes containing a ferrocenyl substitutent. In both bulk and solution copolymerization, the conversion decreased with increasing amount of 1 in the monomer feed with no copolymer formation observed in co-monomer mixtures containing greater than 50% of 1. NMR studies of the copolymers show that the copolymer composition is the same as the monomer feed and that the triad tacticity is constant throughout the series for 1 but an increase in syndiotactic triads is observed for 2. TGA studies indicate an increase in char yield with an increase in the phosphazene content of the copolymer.

Christopher W. AllenEmail:

Keywords:

Cyclophosphazenes ferrocene pendant phosphazene copolymers methylmethacrylate

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