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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Herald of Technological University</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Herald of Technological University</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ВЕСТНИК ТЕХНОЛОГИЧЕСКОГО УНИВЕРСИТЕТА</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">3034-4689</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">59641</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ХИМИЯ, ТЕХНОЛОГИЯ И ИСПОЛЬЗОВАНИЕ ПОЛИМЕРОВ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject></subject>
    </subj-group>
    <subj-group>
     <subject>ХИМИЯ, ТЕХНОЛОГИЯ И ИСПОЛЬЗОВАНИЕ ПОЛИМЕРОВ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">ТЕРМОДИНАМИЧЕСКИЕ ПАРАМЕТРЫ РЕАКЦИЙ ТЕРМИЧЕСКОГО РАЗЛОЖЕНИЯ ДИМЕТИЛКАРБАМАТА 4,4`-ДИФЕНИЛМЕТАНДИИЗОЦИАНАТА</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ТЕРМОДИНАМИЧЕСКИЕ ПАРАМЕТРЫ РЕАКЦИЙ ТЕРМИЧЕСКОГО РАЗЛОЖЕНИЯ ДИМЕТИЛКАРБАМАТА 4,4`-ДИФЕНИЛМЕТАНДИИЗОЦИАНАТА</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Самуилов</surname>
       <given-names>Я Д</given-names>
      </name>
      <name xml:lang="en">
       <surname>Самуилов</surname>
       <given-names>Я Д</given-names>
      </name>
     </name-alternatives>
     <email>ysamuilov@yandex.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шишкина</surname>
       <given-names>Н Н</given-names>
      </name>
      <name xml:lang="en">
       <surname>Шишкина</surname>
       <given-names>Н Н</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Самуилов</surname>
       <given-names>А Я</given-names>
      </name>
      <name xml:lang="en">
       <surname>Самуилов</surname>
       <given-names>А Я</given-names>
      </name>
     </name-alternatives>
     <email>samuilov.alex@yandex.ru</email>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">КНИТУ</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">КНИТУ</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">КНИТУ</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">КНИТУ</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">КНИТУ</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">КНИТУ</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2025-08-01T12:32:03+03:00">
    <day>01</day>
    <month>08</month>
    <year>2025</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-08-01T12:32:03+03:00">
    <day>01</day>
    <month>08</month>
    <year>2025</year>
   </pub-date>
   <volume>15</volume>
   <issue>20</issue>
   <fpage>158</fpage>
   <lpage>160</lpage>
   <history>
    <date date-type="received" iso-8601-date="2023-04-19T11:33:17+03:00">
     <day>19</day>
     <month>04</month>
     <year>2023</year>
    </date>
   </history>
   <self-uri xlink:href="https://vestniktu.ru/en/nauka/article/59641/view">https://vestniktu.ru/en/nauka/article/59641/view</self-uri>
   <abstract xml:lang="ru">
    <p>Квантово-химическим методом B 3 LYP /6-311++ G ( df , p ) определены полные термодинамические характеристики (энтальпии, энтропии, свободные энергии Гиббса, константы равновесия) всех стадий процесса термического распада диметилкарбамата 4,4`-дифенилметандиизоцианата с образованием дифенилметандиизоцианата и метанола. Определены температурные интервалы, обеспечивающие равновесный выход дифенилметандиизоцианата, равный 95÷99%. </p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>By B3LYP/6-311++G(df,p) quantum-chemical method complete thermodynamic characteristics (enthalpies, entropies, total Gibbs energies, equilibrium constants) were evaluated for separate stages of the thermal decomposition of dimethyl 4,4'-methylenebis(4,1-phenylene)dicarbamate with the formation of diphenylmethandiisocyanate and methanol. The temperature ranges providing the equilibrium yield of diphenylmethandiisocyanate equal to 95–99% were estimated. Principal possibility of obtaining practically pure diphenylmethandiisocyanate while decomposing the dimethyl 4,4'-methylenebis(4,1-phenylene)dicarbamate due to the regulation of temperature of the process was shown. </p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>карбаматы</kwd>
    <kwd>изоцианаты</kwd>
    <kwd>carbamates</kwd>
    <kwd>isocyanates</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>карбаматы</kwd>
    <kwd>изоцианаты</kwd>
    <kwd>carbamates</kwd>
    <kwd>isocyanates</kwd>
   </kwd-group>
  </article-meta>
 </front>
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