Results 201 to 210 of about 7,411 (251)

Interpenetrating Polymer Networks

Composite Interfaces, 2010
Interpenetrating polymer networks (IPNs) are a new class of polymer blends in network form in which at least one component is polymerized and/or cross-linked in the immediate presence of the other. IPNs possess several interesting characteristics in comparison to normal polyblends, because the varied synthetic techniques yield IPNs of such diverse ...
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Gradient interpenetrating polymer networks

Journal of Materials Science, 1995
The methods of synthesis and properties of gradient interpenetrating polymer networks (IPN) are discussed based on literature and authors' own experimental data. Gradient IPN can be treated as a sequence of an infinite number of layers of IPNs, whose composition and properties vary gradually from the surface to the core of specimens. These are analysed
Yu. S. Lipatov, L. V. Karabanova
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Interpenetrating polymer networks

British Polymer Journal, 1985
AbstractInterpenetrating polymer networks (IPNs) composed of two or more chemically distinct networks are not only intrinsically interesting as examples of macromolecular chemical topological isomerism but are in practice useful means of controlling mutual miscibility and phase morphology in crosslinked polymers.
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Structure of interpenetrating polymer networks

Journal of Polymer Science Part B: Polymer Physics, 1998
A possible model for the formation of interpenetrating polymer networks is suggested. Phase separation is assumed to be faster than gelation. This implies that domains rich in either component grow first until late stages of spinodal decomposition. In these domains, short linear chains are crosslinked, leading to large branched macromolecules.
I. Chikina, M. Daoud
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Latex Interpenetrating Polymer Networks

International Journal of Polymeric Materials and Polymeric Biomaterials, 1972
Abstract Latex interpenetrating polymer networks are a unique type of polymer blend, synthesized by swelling crosslinked seed latex particles of polymer I with monomer II, plus cross-linking agents, and polymerizing monomer II in situ. In a manner similar to polymer blends generally, polymer 1 and II are incompatible to greater or lesser extents, and ...
L H. Sperling, Tai-Woo Chiu, C. P. Hartman, D. A. Thomas   +3 more
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Recent Advances in Interpenetrating Polymer Networks

Polymer Engineering & Science, 1984
AbstractInterpenetrating polymer networks (IPN's) can be defined as a combination of two polymers in network form, at least one of which was synthesized and/or crosslinked in the immediate presence of the other. Historically, the science of IPN's began with the papers of J. R.
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Nomenclature of Interpenetrating Polymer Networks

Journal of Elastoplastics, 1973
A nomenclature scheme for various types of interpenetrating polymer networks (IPN) based on morphology, topology, and method of synthesis is presented. In this scheme, IPN is the generic name of all polyblends of this type, regardless of their origin, as opposed to Sperling's recent classification of polyblends and graft copolymers, (Polymer Preprints,
D. Klempner, K.C. Frisch, H.L. Frisch
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Functional Semi‐Interpenetrating Polymer Networks

Macromolecular Rapid Communications
AbstractSemi‐interpenetrating polymer networks (SIPNs) have garnered significant interest due to their potential applications in self‐healing materials, drug delivery systems, electrolytes, functional membranes, smart gels and, toughing. SIPNs combine the characteristics of physical cross‐linking with advantageous chemical properties, offering broad ...
Minghao Wang, Jiawei Jiang, Shuofeng Liang, Cong Sui, Si Wu   +4 more
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Interpenetrating Polymer Networks (IPNs) in Dental Polymers and Composites

Journal of Adhesion Science and Technology, 2009
An interpenetrating polymer network (IPN) is a material containing two polymers, each in network form. In biomaterials used in dentistry, the IPN-like nanostructures are used in denture base polymers, denture teeth and fibre-reinforced composites.
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Topologically Interpenetrating Polymer Networks

1974
Ever since the concept of chemical topology was introduced,1 a number of investigators have prepared molecules showing topological isomerism,2–16 most of which were catenanes, i.e., interlocking rings with no chemical bonds between them, shown below.
K. C. Frisch, D. Klempner, H. L. Frisch, H. Ghiradella   +3 more
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