STUDY ON EFFICIENT PERMSELECTIVE GAS SEPARATION MEMBRANE FOR SULFUR DIOXIDE I. SYNTHESIS OF FUNCTIONAL POLYMER OF POLY (VINYL ALCOHOL) MODIFIED WITH PROPYL VINYL SULFOXIDE
ZHANG Yi-feng, GONG Zhang-shui, SHEN Zhi-quan. STUDY ON EFFICIENT PERMSELECTIVE GAS SEPARATION MEMBRANE FOR SULFUR DIOXIDE I. SYNTHESIS OF FUNCTIONAL POLYMER OF POLY (VINYL ALCOHOL) MODIFIED WITH PROPYL VINYL SULFOXIDE[J]. Acta Polymerica Sinica, 1992,(6):721-725.
ZHANG Yi-feng, GONG Zhang-shui, SHEN Zhi-quan. STUDY ON EFFICIENT PERMSELECTIVE GAS SEPARATION MEMBRANE FOR SULFUR DIOXIDE I. SYNTHESIS OF FUNCTIONAL POLYMER OF POLY (VINYL ALCOHOL) MODIFIED WITH PROPYL VINYL SULFOXIDE[J]. Acta Polymerica Sinica, 1992,(6):721-725.DOI:
Michael addition reaction between poly (vinyl alcohol) (PVA) and propyl vinyl sulfoxide (PrVSO) was studied in sodium hydroxide aqueous solution. The functional polymer with various sulfoxide contents were synthesized and characterized by means of IR
1H-NMR
X-ray diffraction and thermal analysis
etc. The results showed that crystallinity of the functional polymer decreased with increasing content of sulfoxide group in the polymer