التفاصيل البيبلوغرافية
| العنوان: |
Synthesis and Extraction Study of Calix[4]arene Dinitrile Derivatives Incorporated in a Polymeric Backbone with Bisphenol-A. |
| المؤلفون: |
Memon, Shahabuddin, O&ggrave;uz, O&ggrave;uz, Yilmaz, Aydan, Tabakci, Mustafa, Yilmaz, Mustafa, Ertul, &Scedile;eref |
| المصدر: |
Journal of Polymers & the Environment; Apr2001, Vol. 9 Issue 2, p97-101, 5p |
| مصطلحات موضوعية: |
COPOLYMERS, NITRILES, CALIXARENES, PHENOLS, POLYMERIC composites, CHEMICAL reactions |
| مستخلص: |
Two new copolymers containing pendant calix[4]arene units with nitrile functionalities at their lower rim have been synthesized via nucleophilic substitution reactions involving 5,11,17,23-tetra-tert-butyl-25,27-bis(cyanomethoxy)-26,28-dihydroxy-calix[4]arene (3) or 25,27-bis(cyanometh oxy)-26,28-dihydroxy-calix[4]arene (4) with 1,5-dibromopentane and bisphenol-A. The phase transfer studies were performed by using liquid–liquid extraction procedures. It has been deduced from the observations that both copolymers show a good phase transfer affinity toward selected alkali, alkaline earth, and transition metal cations, unlike their precursor (3). [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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