ISSN:
1572-8870
Keywords:
Vinyl monomers
;
vinyl polymers
;
cyclopentadienyl manganese tricarbonyl
;
ferrocene
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract New metal-containing vinyl monomers, hexyl-6-oxy-{4′-[4″-(4‴-carboxy cyclopentadienyl manganese tricarbonyl phenyl)phenyl]benzoyloxy}methacrylate and hexyl-6-oxy-{4′-[4″-(4‴-ferrocenoyl phenyl)phenyl]benzoyloxy}methacrylate, and the corresponding homopolymers and random copolymers with hydroxy monomer hexyl-6-oxy-{4′-[4″-(4‴-hydroxyphenyl)phenyl]benzoyloxy}methacrylate were synthesized. The compounds were characterized by1H NMR; their thermal behavior was investigated by means of differential scanning calorimetry. Monomers and polymers containing the ferrocene unit melt at lower temperatures than those derived from the cyclopentadienyl managanese tricarbonyl moiety. The melting temperatures of the monomers and polymers ranged from 399 to about 515 K, Both monomers and polymers failed to exhibit mesogenic behavior. Values ofM n,M w,M w/M n, and degree of polymerization were obtained by gel permeation chromatography. TheM n ranged from 16,500 for the copolymer containing hexyl-6-oxy-{4′-[4″-(4‴-ferrocenoyl phenyl)phenyl] benzoyloxy}methacrylate and hydroxy monomer hexyl-6-oxy-{4′-[4″-(4‴-hydroxyphenyl)phenyl]benzoyloxy}methacrylate at a 1:3 ratio to 26,000 for the copolymer containing hexyl-6-oxy-{4′-[4″-(4‴-carboxy cyclopentadienyl manganese tricarbonyl phenyl)phenyl]benzoyloxy}methacrylate and hydroxy monomer hexyl-6-oxy-{4′-[4″-(4‴-hydroxyphenyl)phenyl]benzoyloxy}methacrylate at a 1:3 ratio.M w/M n ranged from 1.6 in the case of the copolymer containing hexyl-6-oxy-{4′-[4″-(4‴-carboxy cyclopentadienyl manganese tricarbonyl phenyl)phenyl]benzoyloxy}methacrylate and hydroxy monomer hexyl-6-oxy-{4′-[4″-(4‴-hydroxyphenyl)phenyl]benzoyloxy}methacrylate at a 1:3 ratio to 2.2 in the case of poly(hexyl-6-oxy{4′-[4″-(4‴-carboxy cyclopentadienyl manganese tricarbonyl phenyl)phenyl]benzoyloxy}methacrylate).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01036541
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