Preparation of Aromatic Polyurethane and Polyester by High Temperature Vapor Deposition Polymerization

We discussed the film formation step in vapor deposition polymerization thermodynamically in this report. Enthalpy of vaporization of monomers (ΔH=10-30 kcal/mol) were measured from the plots of saturated vapor pressure as a function of reciprocal temperature. They were then compared with the activa...

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Bibliographic Details
Published inKOBUNSHI RONBUNSHU Vol. 53; no. 5; pp. 317 - 321
Main Authors IIJIMA, Masayuki, UKISHIMA, Sadayuki, TAKAHASHI, Yoshikazu
Format Journal Article
LanguageJapanese
Published Tokyo The Society of Polymer Science, Japan 01.01.1996
Tsukiji daisan nagaoka
Subjects
Activation Energy
Enthalpy
Polyester
Polyurethane
Vapor Deposition Polymerization
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Summary:We discussed the film formation step in vapor deposition polymerization thermodynamically in this report. Enthalpy of vaporization of monomers (ΔH=10-30 kcal/mol) were measured from the plots of saturated vapor pressure as a function of reciprocal temperature. They were then compared with the activation energy (1-25 kcal/mol) between the monomers in solution. It is found that when the total enthalpy of vaporization of both the monomers is much larger than the activation energy, the polymers can be synthesized by the vapor deposition polymerization. Using this knowledge, an aromatic polyurethane and polyester were prepared for the first time by high temperature vapor deposition polymerization.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.53.317