Preparation and properties of calix[4]arene-based epoxy resins
β Scribed by Young-Min Jeon; Su-Han Kim; Myoung-Seon Gong
- Book ID
- 105735627
- Publisher
- The Polymer Society of Korea
- Year
- 2005
- Tongue
- English
- Weight
- 180 KB
- Volume
- 13
- Category
- Article
- ISSN
- 1598-5032
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π SIMILAR VOLUMES
In this work, polydimethylsiloxane (PDMS) with different molecular weight were used to modify diglycidyl ether of bisphenol A (DGEBA). A PDMS-block-DGEBA copolymer that acted as a compatibilizer was prepared via DGEBA, hydroxy terminated PDMS, and silane coupling agent in the presence of a catalyst.
Two calix[4] arene derivatives (5 and 8) and their telomers are synthesized to estimate selective extraction of alkali and transition metal cations from the aqueous to the organic phase (chloroform). Compound 5 shows selectivity toward Hg 2Ο© . Compound 8 and telomers 6 and 9 are not selective but a
## Abstract Four __pβtert__βbutylcalix[4]arene derivatives with different Schiff base groups at the lower rim were efficiently prepared in three steps. __pβtert__βButylcalix[4]arene was firstly __Oβ__peralkylated with __Ο__βhaloalkylphthalimide in the system of NaH/DMF to give calixarene tetraalkyl
Biologically active Vancomycin antibiotic mimics have been synthesized by linking two opposite aromatic nuclei of a calix[4]arene derivative in the cone conformation with a polifunctional bridge containing D-or L-alanine units and a diethylentriamine segment.