Peroxide initiated maleic anhydride grafting: Structural studies on an ester-containing copolymer and related substrates
✍ Scribed by S. Ranganathan; W. E. Baker; K. E. Russell; R. A. Whitney
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 224 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0887-624X
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✦ Synopsis
Maleic anhydride (MAn) was grafted onto the low molecular weight esters methyl decanoate (MD) and methyl 2-ethylhexanoate (MEH) using the free-radical initiators Lupersol-101 and -130; the esters were used as model compounds for the copolymer poly(ethylene-co-methyl acrylate). The grafted products in both cases were isolated from the unreacted ester and were subjected to extensive analysis using spectroscopic and chromatographic techniques. Analysis of the grafted material indicated the presence of one or more succinic anhydride (SAn) residues grafted to the ester. In the case of the multiply grafted material it has been established conclusively by 13 C-NMR using 2,3-13 C 2 labeled MAn that the multiple grafts exist as single units. A limited number of grafting experiments was performed on the copolymer in the melt and the graft-modified copolymer was characterized spectroscopically. Single graft units were observed.