Concept of Inter-Polymer Network IPN

Sequential IPN In a sequential IPN system the second polymeric component is polymerized after the completion of polymerization of the first polymeric component [69]. 

Novel IPN A novel IPN system consists of two or more polymeric networks which are partially interlocked to each other but not covalently linked [69]. 

Semi IPN In a semi IPN system one of the polymeric components is crosslinked and another is in linear form [69]. 

Simultaneously IPN Simultaneously IPN system is formed by the simultaneous polymerization of both components of polymer [69]. 

Sequential synthesis A polymeric network is synthesized and subsequently swollen with all the precursors necessary for the formation of 

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