Ceric Ion Initiated Graft Copolymerization of Vinyl Monomers and Cellulose: A Model System for Structural Analysis |
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Page 3
... glycols than with primary or secondary alcohols ( 24 ) . Upon disproportionation of the ceric - glycol complex , carbon radicals are formed in preference to oxygen radicals ( 24 ) , and the carbon - carbon bond of the glycol group may ...
... glycols than with primary or secondary alcohols ( 24 ) . Upon disproportionation of the ceric - glycol complex , carbon radicals are formed in preference to oxygen radicals ( 24 ) , and the carbon - carbon bond of the glycol group may ...
Page 37
... glycol involv- for a carbonyl in the grafted product suggests that oxida- tive cleavage of a glycol group occurred and thus pre- sumably grafting at C2 , C3 , or C4 was initiated . This agrees with the literature reports ( Chapter V ) ...
... glycol involv- for a carbonyl in the grafted product suggests that oxida- tive cleavage of a glycol group occurred and thus pre- sumably grafting at C2 , C3 , or C4 was initiated . This agrees with the literature reports ( Chapter V ) ...
Page 53
... glycol group of the anhydro- glucose unit of cellulose would be oxidized six times faster than the C hydroxyl ( Table VII ) . Pottenger and Johnson ( 40 ) found no significant reaction at C. Preferential C2 - C reactivity is further ...
... glycol group of the anhydro- glucose unit of cellulose would be oxidized six times faster than the C hydroxyl ( Table VII ) . Pottenger and Johnson ( 40 ) found no significant reaction at C. Preferential C2 - C reactivity is further ...
Common terms and phrases
acid acrylonitrile acrylonitrile-grafted methyl added alcohols aldehyde allow analysis anhydroglucose unit Butyl Vinyl Ether carbon CERIC ION INITIATED CH OH CH_OH CH₂OH CHAPTER chemical CHOH chromatography complex concentrated containing crude Determination equivalent ETHER TO METHYL Figure formed formic acid fractions free radical glucose glucoside grafted copolymer grafted product grafting reaction H OH homopolymer hydrolysis hydroxyl increase indicated INTEGRAL ION INITIATED GRAFTING mechanism method Methyl a-D-Gluco methyl a-D-glucopyranoside mixture mole molecular weight NMR OF PRODUCT obtained occur OH H oxidation periodate oxidation polymer possible Preparation PRODUCT FROM CERIC pyranoside reducing resulting samples showed shown sodium solution SOLVENT TEMPERATURE standard structure substrate suggested SWEEP SWEEP OFFSET TABLE tion unit of cellulose vinyl monomer water-soluble yield Н Н Н Н Н Н он он Н осн осн3 снон