Preparation of copolymers of p-Isopropenylcalix[8]arene and Styrene

Miloshev, S.; Petrova, P.

doi:10.1007/s00289-005-0501-3

Cited by 7 publications

(4 citation statements)

References 24 publications

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“…Advances in Chemical Engineering and Science, these new polymers may then be processed into materials suitable for the chemical sensor devices such as ion selective electrodes and filtration/extraction membranas [17] [18] [19] [20] [21]. Previously reported sensor devices based on calixarenes have been fabricated by blending the calixarene molecules into polymer melts o other membrane composites Yilmaz and co workers [22] [23] [24] [25] [26], reported a synthesis of polymeric calixarenes by lower and upper rim and investigation of these ionophoric material with alkali and transition metal cations, in all cases the polymeric support reported are organic compounds. We report the used inorganic support as silicate in this work.…”

Section: Introductionmentioning

confidence: 99%

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Aparicio-Aragon,

Deza-Ramos

2024

ACES

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Currently a technique widely used for gold extraction is mercury by amalgamation technique, the tailing produced pollutes water of all kinds, so it is necessary to develop a form of selective mitigation, for which it is necessary to use complexing agents based on calixarene functionalized with mercury sequestering agents. These are immobilized by adding supports based on natural silica to form polymers and make them insoluble in all types of solvents, so that they can be used as an extractor and at the same time regenerate to their original properties for continuous reuse.

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Section: Introductionmentioning

confidence: 99%

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Aparicio-Aragon,

Deza-Ramos

2024

ACES

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“…The p-Isopropenylcalix [8]arenestyrene copolymer employed for this study ( Fig.1) was obtained according to described procedure [16]. Alq 3 , TPD, and polyethylene terеphtalate (PET) substrates coated with ITO (40 Ω/sq) were purchased from Aldrich and used as received.…”

Section: Methodsmentioning

confidence: 99%

Influence of p-isopropenylcalixarenestyrene copolymer buffer layer over Alq₃based OLEDs

Petrova

Tomova

Stoycheva-Topalova

et al. 2010

Eur. Phys. J. Appl. Phys.

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Abstract:The characteristics of organic light-emitting devices based on aluminum tris-(8-hydroxyquinoline) (Alq 3 ), N, N′-bis(3-methylphenyl)-N,N′-diphenylbenzidine (TPD) with novel p-Isopropenylcalix [8]arenestyrene copolymer buffer layer and Al cathode were investigated. The devices with TPD/Alq 3 /Al were also fabricated in the same way for comparison. The p-Isopropenylcalix [8]arenestyrene copolymer used as buffer layer greatly improved the performance of the device and increased the device efficiency and stability.

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“…Only a few examples report polymeric resins functionalized with calix[6]arene46–48 and calix[8]arene49–53 and none of these have been used for the complexation of biological or pharmaceutical materials.…”

Section: Introductionmentioning

confidence: 99%

Polycationic calix[8]arene receptors grafted onto polymeric matrix: smart material for heparin neutralization

Mecca

Cunsolo

2009

Polymers for Advanced Techs

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Heparin is widely prescribed as an anticoagulant medicine and is beneficial to millions of patients. However, the use of heparin in open-heart surgery, where it enables a continuous flow of blood throughout the process, is still problematic. Its anticlotting properties are crucial for a successful operation, but after surgery the patient's blood needs to return normal and acquire its former ability to coagulate. If this process fails, the outcome may prove fatal. Currently, protamine sulfate is used to neutralize heparin after open-heart surgery. However, protamine itself causes allergic reactions and other side effects and is sometimes fatal. For this reason, the finding of new heparin antagonists or much safer methods for heparin removal from blood is currently of great interest. Recently we have reported on the synthesis of calix[8]arene polycations that have shown an exceptional neutralization power towards heparin both in physiological solution and in blood. In this work, we have studied the grafting of these calix[8]arene derivatives onto a polymeric matrix with the aim to obtain a new polymeric material appropriate for the design and realization of filters or membranes able to effectively remove heparin from blood. In this way, also the side effects connected to systemic administration of heparin antagonists are avoided. Besides the synthesis, preliminary results on the neutralization capacity towards heparin, both in physiological solution and in blood, are reported.

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Preparation of copolymers of p-Isopropenylcalix[8]arene and Styrene

Cited by 7 publications

References 24 publications

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Influence of p-isopropenylcalixarenestyrene copolymer buffer layer over Alq₃based OLEDs

Polycationic calix[8]arene receptors grafted onto polymeric matrix: smart material for heparin neutralization

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Preparation of copolymers of p-Isopropenylcalix[8]arene and Styrene

Cited by 7 publications

References 24 publications

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Natural Silicate as a Solid Support for the Calix[4]Thiophosphorus Derivative for Removal Mercury (II), as Picrate from Water

Influence of p-isopropenylcalixarenestyrene copolymer buffer layer over Alq3based OLEDs

Polycationic calix[8]arene receptors grafted onto polymeric matrix: smart material for heparin neutralization

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Influence of p-isopropenylcalixarenestyrene copolymer buffer layer over Alq₃based OLEDs