Terpolymers of styrene, hex-1-ene and SO2

✍ Scribed by Allan H. Fawcett; Ursula Smyth

• Book ID: 103075545
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 729 KB
• Volume: 25
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(89)90046-3

✦ Synopsis

Terpolymers of styrene, hex-l-ene and sulphur dioxide have been prepared at temperatures between 67 and -63 ° and their microstructure characterized by t3C NMR spectroscopy. The main chains consist of sequences in which hex-l-ene residues alternate with sulphone groups, and sequences in which styrene runs are terminated by sulphone groups. The mole fraction of styrene residues, the mean length of styrene runs (m), and the fraction of single, double and triple runs of styrenes have been found by analysis of the 13C NMR spectra. (m) fell with temperature. At 45 ° there is a tendency in favour of homopolymerization of each type of alkylsulphone radical. The reactivity of the styrene relative to hex-l-ene rises a little as the temperature is raised to 67 °, but rises also by a factor of 20 as the temperature is lowered to -63 ° .