PMR line broadening of small molecules in the rigid polychloral matrix. IV. Haloaldehyde polymers

Vogl, Otto; Hatäda, Koichi

doi:10.1002/pol.1975.130131004

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Cryotachensic Polymerization1

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1977

2000

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Cited by 9 publications

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“…The remaining monomer is tightly associated in a molecular complex with the polymer (as established by broadline NMR spectroscopy) 37 and cannot be removed completely by evaporation or by heat treatment. Solvent extraction will remove the entire monomer, and when the monomer is removed by extraction, it does not reassociate when the polymer is exposed again to fresh monomer.…”

Section: Cryotachensic Polymerizationmentioning

confidence: 99%

Haloacetaldehyde polymers and macromolecular asymmetry

Vogl

2000

J. Polym. Sci. A Polym. Chem.

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Section: Cryotachensic Polymerizationmentioning

confidence: 99%

Haloacetaldehyde polymers and macromolecular asymmetry

Vogl

2000

J. Polym. Sci. A Polym. Chem.

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Haloaldehyde polymers, 18. Rate of copolymerization of chloral with isocyanates

Kubisa¹,

Teshirogi²,

Hatäda³

et al. 1980

Makromol. Chem.

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Cryotachensic copolymerization of chloral with various aliphatic and aromatic isocyanates, initiated by lithium tert-butoxide and triphenylphosphine at O"C, was followed by 'H NMR spectroscopy. Information on the mobility of comonomers and solvent molecules in the polymerization mixture was obtained by measuring the line width of the signals. Relative rates of incorporation of chloral and isocyanates into the copolymer were determined, indicating that the copolymer was not uniform in structure and that the content of isocyanate units increased significantly in the final stages of copolymerization.

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