title: Determination of molecular characteristics of cispolybutadiene rubbers by NMR spectroscopy
metadata.name: dc.contributor.author
metadata.value: Davletbayev, Ruslan R.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Makhiyanov, Nail
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2016-10-05T09:04:17Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2016-10-05T09:04:17Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2016-06
metadata.lang: -
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu04.2016.204
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/3934
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: With the use of nuclear magnetic resonance (NMR) spectroscopy (at an Larmor frequence of 600
  MHz for proton resonance) and gel-permeation chromatography (GPC), the industrial polybutadiene
  rubbers with high cis-1,4-units content produced on neodymium and cobalt-containing
  catalytic systems were studied. An analysis has been made of the NMR spectra (both 1H and 13C)
  for different types of deuterated solvents and concentrations of solutions. As a result, the structure
  of terminal units and the equivalent weight (molecular weight per terminal group) of test butadiene
  rubbers were determined. From viscometry equipped GPC data — the branching parameter
  and from NMR data — the number-averaged molecular weights were also calculated. It is shown
  that in the package with viscometry equipped GPC data, modern 1H and 13C NMR spectroscopy
  offers scope for ascertainment of results for determining molecular-weight-distributions. Refs 15.
  Figs 3. Tables 2.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: По материалам 12-й Зимней молодёжной школы-конференции «Магнитный резонанс и его приложения. Spinus-2015», 15–21 ноября 2015 г., СПбГУ, Санкт-Петербург, Россия, URL: http://nmr.phys.spbu.ru/spinus.
  Школа-конференция проведена при финансовой поддержке Российского фонда фундаментальных
  исследований (проект № 15-32-10480) и OOO «Брукер».
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Series 4. Physics. Chemistry;Vol. 3 (61); Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: NMR spectroscopy
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: gel-permeation chromatography
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: molecular-weight-distribution
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: terminal units
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Determination of molecular characteristics of cispolybutadiene rubbers by NMR spectroscopy
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: Davletbaev.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/3934/1/Davletbaev.pdf
resources.format: Adobe PDF
resources.size: 359,8 kB