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Electrophilic substitution of highly crosslinked polystyrene resins

✍ Scribed by J.A. Greig; D.C. Sherrington

Book ID
103073300
Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
330 KB
Volume
15
Category
Article
ISSN
0014-3057

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✦ Synopsis

Abstraet--A number of polystyrene resins with nominal crosslink ratios of 5~,09/o have been prepared, chlorobenzoylated and chloromethylated. The degrees of functionalization achieved are dependent on the crosslink ratios of the resins. Analysis of the results obtained from specific reaction conditions suggests that substitution occurs preferentially on unencumbered pendant aromatic groups rather than on those already carrying an ethyl or additional polymer chain substituent. * Percentage of groups (1) + ( ) + (3) successfully chloromethylated. $ Molar ratio (I) + (2) + (3)/ chloromethyl ethyl ether/SnCl4: 1/1.8/0.9.

πŸ“œ SIMILAR VOLUMES

Comment on β€œelectrophilic substitution o
Comment on β€œelectrophilic substitution of polystyrene with aromatic anhydrides”
✍ D. C. Sherrington; D. Aitken πŸ“‚ Article πŸ“… 1983 πŸ› John Wiley and Sons 🌐 English βš– 65 KB πŸ‘ 1 views

Recently we have had occasion to carry out a number of experiments very similar to those reported by Biswas and Chatterjee and wish to point out an important omission in their paper. We have acylated linear polystyrene (MW -100,000) using both phthalic and succinic anhydrides in nitrobenzene, and Al