1 Ocak 2016 Dergi makalesi Açık Erişim

Ozturk, Bengi Ozgun; Sehitoglu, Solmaz Karabulut

DataCite XML

<?xml version='1.0' encoding='utf-8'?>
<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd">
  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/56415</identifier>
  <creators>
    <creator>
      <creatorName>Ozturk, Bengi Ozgun</creatorName>
      <givenName>Bengi Ozgun</givenName>
      <familyName>Ozturk</familyName>
      <affiliation>Hacettepe Univ, Dept Chem, TR-06800 Beytepe, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Sehitoglu, Solmaz Karabulut</creatorName>
      <givenName>Solmaz Karabulut</givenName>
      <familyName>Sehitoglu</familyName>
      <affiliation>Hacettepe Univ, Dept Chem, TR-06800 Beytepe, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Improved Molecular Weight Control In Ring-Opening Metathesis Polymerization Reactions In Organic And Aqueous Media Using N-Heterocyclic Carbene-Ruthenium Arene/Alkyne Catalyst Systems</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2016</publicationYear>
  <dates>
    <date dateType="Issued">2016-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/56415</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1002/aoc.3441</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">A binary catalytic system, RuCl2(N-heterocyclic carbene)(p-cymene)/alkyne, was developed for improved molecular weight control in ring-opening metathesis polymerization (ROMP) reactions of norbornene derivatives in organic and aqueous media. Monometallic ruthenium arene compounds were activated using aryl and aliphatic terminal alkynes to form highly active metathesis species. The effects of alkyne structure and concentration on the overall catalytic activity were systematically investigated. The catalytic activity of the metathesis active species can be tuned by varying alkyne substituents. Also, the initiation rate of the ROMP reaction can be tuned by increasing the alkyne-to-Ru ratio. ROMP polymers with a wide range of molecular weights (91-832kDa) were isolated in organic media, whereas polymers with a molecular weight range of 110-280kDa with average particle sizes of 150-250nm were isolated in aqueous media. Copyright (c) 2016 John Wiley &amp;amp; Sons, Ltd.</description>
  </descriptions>
</resource>