caa a22 4500 465787932 CHVBK 20180323112015.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF01033104 doi (NATIONALLICENCE)springer-10.1007/BF01033104 13C NMR chemical shifts of polyisobutylene end groups and related model compounds [Elektronische Daten] [Sandor Nemes, Jiaoshi Si, Joseph Kennedy] Summary: The detailed end-structures of CH3-,-Cl, exo-olefin, endoolefin, and-OH ended polyisobutylenes (PIB) have been characterized by high resolution13C NMR spectroscopy. Specifically, the13C chemical shifts characteristic of the various carbons in the following structures have been determined: ≈CH2C(CH3)2-CH2C(CH3)3, ≈CH2C(CH3)2CH2C(CH3)2Cl, ≈CH2C(CH3)2CH2C(CH3)=CH2, ≈CH2C(CH3)2CH=C(CH3)2, and ≈CH2C(CH3)2CH2CH(CH3)CH2OH. The structure analysis of model compounds was of utmost help in these investigations. The above information is of great value for the identification of terminally functional PIBs and analysis of reaction mixtures. Springer-Verlag, 1990 Nemes Sandor Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut Si Jiaoshi Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut Kennedy Joseph Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut Polymer Bulletin Springer-Verlag 23/6(1990-06-01), 597-603 0170-0839 23:6<597 1990 23 289 https://doi.org/10.1007/BF01033104 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01033104 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nemes Sandor Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut NATIONALLICENCE 700 1- Si Jiaoshi Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut NATIONALLICENCE 700 1- Kennedy Joseph Institute of Polymer Science, The University of Akron, 44325-3909, Akron, OH, USA aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 23/6(1990-06-01), 597-603 0170-0839 23:6<597 1990 23 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer