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Physically cross-linked polymers

The structure of these gel-like systems of micelles is very different from that of conventional electrophoresis media made from chemically and physically cross-linked polymers of polyacrylamide and agarose [75], The absence of chemical or physical cross-links in the Pluronic gel-like phases may allow a larger degree of freedom for macromolecular transport around the obstacles that make up the medium than occurs in conventional electrophoresis media. [Pg.542]

Gel—A chemically or physically cross-linked polymer that is highly swollen with solvent. Called a hydrogel if the solvent is water (e.g., gelatin). [Pg.259]

Figure 19 Gelled SPE model-top chemically and bottom physically cross-linked polymer. (Reprinted from Ref 220. 2000, with permission from Elsevier)... Figure 19 Gelled SPE model-top chemically and bottom physically cross-linked polymer. (Reprinted from Ref 220. 2000, with permission from Elsevier)...
JLnterpenetrating polymer networks (IPNs) are a special class of polymer blends in which the polymers exist in networks that are formed when at least one of the polymers is synthesized or cross-linked in the presence of the other. Classical or true IPNs are based solely on thermosetting polymers that form chemical cross-links. More recently, two classes of thermoplastic IPNs have been developed. Apparent IPNs are based on combinations of physically cross-linked polymers. Semi-IPNs are based on combinations of... [Pg.181]

It is well known that thermoset polymers such as epoxy, vinyl ester, polyester, phenolic, etc., are chemically or physically cross-linked polymers (chemical bonds between polymer chains, intermolecular van der Waals bonds, dipole-dipole interactions, and molecular entanglement). These cross-links serve as molecular anchorages, which prevent molecular motion of the... [Pg.1]

Although attempts have been made to investigate the morphological stracture of T -SMPUs, by smdying phase composition and microdomain sizes (the latter defining the physically cross-linked polymer netwoifcs), the structure has not yet been demonstrated systematically (Takahashi et al, 1996 Lin and Chen, 1998a,b Lee et al., 2001). [Pg.47]

Veenstra H, van Dam J, de Boer AP. On the coarsening of co-continuous morphologies in polymer blends Effect of interfacial tension, viscosity and physical cross-links. Polymer 2000 41(8) 3037-3045. [Pg.371]


See other pages where Physically cross-linked polymers is mentioned: [Pg.222]    [Pg.1822]    [Pg.75]    [Pg.2068]    [Pg.1272]    [Pg.36]    [Pg.382]    [Pg.235]    [Pg.36]    [Pg.213]    [Pg.217]    [Pg.217]    [Pg.76]    [Pg.87]    [Pg.90]    [Pg.152]    [Pg.400]    [Pg.115]    [Pg.328]    [Pg.121]   


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Cross polymer

Cross-linking physical

Linked polymer

Physical cross-links

Physically cross-linked polymers block copolymers

Physically cross-linked polymers composites

Physically cross-linked polymers thermoplastic polyurethanes

Physics polymer

Polymer cross-link

Polymers physical

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