NDLI: The effect of molecular imprinting on the pore size distribution of polymers

Content Provider	Springer Nature Link
Author	Kobaisi, Mohammad Tate, Margaret Rix, Colin Jakubov, Timur S. Mainwaring, David E.
Copyright Year	2007
Abstract	Molecular imprinting techniques are becoming an increasingly important domain of porous polymers generally, to achieve molecule specific recognition through morphology or stereochemistry of cavities. Imprinting is sought to increase both selectivity and sensitivity where the polymer may be present as particulate, membrane or thin film forms. Here, we detail mechanisms involved in the formation, stability and adsorption of binding sites, through the influence of polymerisation conditions and templates on the porosity of highly crosslinked molecularly imprinted polymers (MIPs). Environmental control represents an important area for porous polymers, here we focus on two template fungicides, iprodione and pyrimethanil, for ethylene glycol dimethacrylate (EGDMA) based polymers. In general, control of the pre-polymerisation interactions were able to vary the surface areas of polymers from 40–60 m2 g−1 to 300–436 m2 g−1 while pore sizes fell into distributions (a) close to the micropore region at ∼3.8 nm, (b) in the 10 to 20 nm mesopore region and (c) in the 20 to 50 nm mesopore region. The importance of intermolecular interactions and aggregation in the pre-polymerisation solution to the Brunauer, Emmett, Teller (BET) surface areas and pore size distribution of final polymers has been demonstrated by systematic variation of chemical functionality. These effects confirm recent molecular dynamic simulation studies of MIP formation and cavity stability.
Starting Page	315
Ending Page	321
Page Count	7
File Format	PDF
ISSN	09295607
Journal	Adsorption
Volume Number	13
Issue Number	3-4
e-ISSN	15728757
Language	English
Publisher	Springer US
Publisher Date	2007-10-18
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biochemical, energy and environmental applications Fundamentals of adsorption Liquid phase adsorption Engineering Thermodynamics, Transport Phenomena Industrial Chemistry/Chemical Engineering Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering Surfaces and Interfaces

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