H-1 AND C-13 NMR-SPECTROSCOPY AS A TOOL TO PROBE THE MICROSTRUCTURES OF DIFFERENT TYPES OF POLY(VINYL FORMAL)

Authors
POLLERS I ADRIAENSENS P CARLEER R VANDERZANDE D GELAN J
Citation
I. Pollers et al., H-1 AND C-13 NMR-SPECTROSCOPY AS A TOOL TO PROBE THE MICROSTRUCTURES OF DIFFERENT TYPES OF POLY(VINYL FORMAL), Macromolecules, 29(18), 1996, pp. 5875-5881
Citations number
26
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
29
Issue
18
Year of publication
1996
Pages
5875 - 5881
Database
ISI
SICI code
0024-9297(1996)29:18<5875:HACNAA>2.0.ZU;2-7
Abstract
H-1 and C-13 NMR spectroscopy has been used to analyze the stereoseque nce and the comonomer sequence microstructure in poly(vinyl formal) (P VF). The preparation method employed clearly has an effect on the func tional group distribution. The results reveal that the heterogeneous m odification method shows evidence for a blocky distribution of functio nal groups whereas samples prepared by the precipitation method exhibi t a random distribution.