Interpenetrating polymer networks nomenclature

Simultaneous Mixing or Reacting. One of the advantages of the proposed nomenclature is the preservation of the time sequence of polymer reactions. Examples include grafting reactions and interpenetrating polymer networks. In some cases, like the blends or random copolymerization, the time sequence has no meaning. 

L. H. Sperling, Source-Based Nomenclature for Polymer Blends, Interpenetrating Polymer Networks and Related Materials, Division of Polymer Chemistry Nomenclature Conunittee Document, (1984). 

The field of IPNs has a special problem relating to nomenclature. Since no standard nomenclature yet exists, and many works on IPNs do not contain the phrase interpenetrating polymer networks, it is difficult to identify quickly many IPN-related papers and patents. While this work is also incomplete in this respect, many new workers in the field are included. 

Interpenetrating Polymer Networks, abbreviated IPNs. No standard nomenclature exists. As an interpenetrating blend of two crosslinked polymers, the structure can be represented as... 

D. Klempner, K. C. Frisch, and H. L. Frisch, Nomenclature of Interpenetrating Polymer Networks, /. Elastoplast. 5 (October), 196 (1973). Nomenclature of IPNs and related materials. 

L. H. Sperling, Isomeric Graft Copolymers and Interpenetrating Polymer Networks. Current Status of Nomenclature Schemes, in Chemistry and Properties of CrosslinkedPolymers, S. S. Labana, ed., Academic, New York (1977). Group theory concepts applied to polymer blends, grafts, blocks, and IPNs. Nomenclature scheme. 

L. H. Sperling and K. B. Ferguson, Isomeric Graft Copolymers and Interpenetrating Polymer Networks. Possible Arrangements and Nomenclature, Macromolecules 8(6), 69 (1975). Graft copolymer and IPN nomenclature scheme. Application of group theory concepts. 

According to new nomenclature, a polymer blend is accorded the connective -blend-. Many of these blends are prepared by highly sophisticated methods and are actually on a parallel with blocks, grafts, and interpenetrating polymer networks. 

AaaembHes Most recent, die source-based nomenclature has been extended for non-linear macromolecules and macromolecular assemblies [5]. The non-linear macromolecules comprise branched, graft, comb, star, cyclic, and network macromolecules. The macromolecular assemblies comprise polymer blends, interpenetrating polymer networks, and po er-po er complexes. 

The Commission on Macromolecular Nomenclature is currently working on the extension of macromolecular nomenclature to branched and cyclic macromolecules, micronetworks and polymer networks, and to assemblies held together by non-covalent bonds or forces, such as polymer blends, interpenetrating networks and polymer complexes. 

Non-linear polymers comprise branched, graft, star, cyclic, and network macromolecules. Polymer blends, interpenetrating networks, and polymer-polymer complexes are summarized as macromolecular assemblies. Their skeletal structure should be reflected in the name by using an italicized connective as a prefix to the source-based name of the polymer component or components to which the prefix applies. Table 5.10.1 lists aU classifications for non-Unear macromolecules and macromolecular assemblies with their corresponding prefixes [971UP2]. Examples for nomenclature are given in Table 5.10.2 (non-linear macromolecules) and Table 5.10.3 (macromolecular assemblies). 

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