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Effect of ring size on the cationic ring-opening polymerization of cyclic sulfites

✍ Scribed by Natsuhiro Azuma; Fumio Sanda; Toshikazu Takata; Takeshi Endo


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
380 KB
Volume
199
Category
Article
ISSN
1022-1352

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πŸ“œ SIMILAR VOLUMES


Cationic ring-opening copolymerization o
✍ Natsuhiro Azuma; Fumio Sanda; Toshikazu Takata; Takeshi Endo πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 153 KB πŸ‘ 1 views

Cationic copolymerization of seven-membered cyclic sulfite, 1,3,2-dioxathiepane-2-oxide ( 1) and oxetane ( 2) in one-shot feeding was carried out to obtain the corresponding copolymer. When a mixture of equimolar amount of 1 and 2 reacted at 0ЊC in the presence of methyl trifluoromethanesulfonate (T

Ring-opening polymerization of cyclic ca
✍ Jyuhou Matsuo; Shinji Nakano; Fumio Sanda; Takeshi Endo πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 180 KB πŸ‘ 1 views

Ring-opening reactions of 1,3-dioxepan-2-one (1) and 1,3-dioxan-2-one (2) with several alcohols were examined. The reactions proceeded without trifluoroacetic acid (TFA) in low conversions, while they proceeded smoothly with TFA to afford the ring-opened adducts and oligomers. Ring-opening polymeriz