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Synthesis of end-functionalized (1 → 6)-2,5-anhydro-D-glucitols via anionic cyclopolymerization of 1,2:5,6-dianhydro-3,4-di-O-methyl-D-mannitol for preparing graft copolymers

✍ Scribed by Toshifumi Satoh; Takahiro Miura; Takeshi Hatakeyama; Kazuaki Yokota; Toyoji Kakuchi

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
372 KB
Volume
18
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

End‐functionalized (1→6)‐2,5‐anhydro‐3,4‐di‐O‐methyl‐D‐glucitols (3a–c) were synthesized by the anionic cyclopolymerization of 1,2:5,6‐dianhydro‐3,4‐di‐O‐methyl‐D‐mannitol (1), followed by treatment with a terminating agent such as 4‐vinylbenzyl (2a), oxetanyl (2b), and methacryloyl group (2c). The end‐functionalization proceeded in a high efficiency at 73–98%. The radical copolymerization of styrene with 3a yielded a polymer (5a) whose GPC trace exhibited a unimodal peak. 5a was polystyrene with (1→6)‐2,5‐anhydro‐3,4‐di‐O‐methyl‐D‐glucitol as pendant groups whose structure was confirmed by the ^1^H NMR spectrum.

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