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Cyclic hyperbranched polyesters derived from 4,4-bis(4′-hydroxyphenyl)valeric acid

✍ Scribed by Hans R. Kricheldorf; Radka Hobzova; Gert Schwarz


Book ID
108247642
Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
292 KB
Volume
44
Category
Article
ISSN
0032-3861

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📜 SIMILAR VOLUMES


New polymer syntheses. XCVII. Hyperbranc
✍ Hans R. Kricheldorf; Thomas Stukenbrock; Christian Friedrich 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 353 KB

Two classes of liquid crystalline hyperbranched copolyesters were prepared by the copolycondensation of silylated 3,5-bis(acetoxy)benzoic acid with mixtures of mesogenic difunctional monomers. The first class of LC-copolyesters was obtained from 1 : 1 mixtures (molar ratio) of silylated b-(4-acetoxy

New polymer syntheses. XCVI. Star-shaped
✍ Hans R. Kricheldorf; Thomas Stukenbrock; Christian Friedrich 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB

Star-shaped polyesters were prepared by polycondensation of tetraacetoxyspirobis(indane) and a 1 : 1 mixture of silylated b-(4-acetoxyphenyl)propionic acid and silylated 4-acetoxybenzoic acid. The lengths of the star arms were systematically varied, and the influence of the star center on the stabil