2. General properties of resins

2.1 Cross-linking rate and backbone porosity

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2.1.1 The need for cross-linking

Increasing the degree of cross-linking (percentage of DVB in the monomer, by mass) results in a harder, less elastic resin. More cross-linked resins are more resistant to oxidizing media, which tend to uncross-link the polymer. However, above 10-12% DVB, the structure becomes too rigid and compact. Activation becomes difficult, as access to the bead core is hampered by the density of the backbone.

In addition,...

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General properties of resins

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page Structure of the various types of ion exchangers

Ion exchange reactions

Bibliography

(1) - THOMPSON (H.S.) - On the adsorbent power of soils. - J. Royal agric. Soc., Grande-Bretagne, 11, p. 68 (1850).
(2) - WAY (J.T.) - J. Royal Agric. Soc., Grande-Bretagne, 11, p. 313 (1850).
(3)...

Websites

DE DARDEL François: Ion exchange http://dardel.info/IX/index_FR.html

Events

Conference: The International Ion Exchange Conference Queens′ College, University of Cambridge, UK. Held every 4 years. Last conference in September 2012.