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amorphous polymer

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См. также в других словарях:

  • amorphous solid — ▪ physics Introduction       any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern. Such solids include glass, plastic, and gel.       Solids and liquids (liquid) are both forms of condensed… …   Universalium

  • Polymer characterization — is the analytical branch of polymer science.The discipline is concerned with the characterization of polymeric materials on a variety of levels. The characterization typically has as a goal to improve the performance of the material which implies …   Wikipedia

  • Polymer — Appearance of real linear polymer chains as recorded using an atomic force microscope on surface under liquid medium. Chain contour length for this polymer is 204 nm; thickness is 0.4 nm.[1] A polymer is a large molecule (macromolecule …   Wikipedia

  • polymer — /pol euh meuhr/, n. Chem. 1. a compound of high molecular weight derived either by the addition of many smaller molecules, as polyethylene, or by the condensation of many smaller molecules with the elimination of water, alcohol, or the like, as… …   Universalium

  • Conductive polymer — This article is about bulk applications of conductive polymers. For single molecule electronics, see Molecular scale electronics. Chemical structures of some conductive polymers. From top left clockwise: polyacetylene; polyphenylene vinylene;… …   Wikipedia

  • Spherulite (polymer physics) — In polymer physics, spherulites are spherical semi crystalline regions inside non branched linear polymers.When a liquid linear polymer (such as polyethylene) is cooled down slowly, the polymer strings take on a certain orderly configuration :… …   Wikipedia

  • Synthetic biodegradable polymer — Many opportunities exist for the application of synthetic biodegradable polymers in the biomedical area particularly in the fields of tissue engineering and controlled drug delivery. Degradation is important in the biomedical area for many… …   Wikipedia

  • Conjugated microporous polymer — Conjugated microporous polymers (CMPs)[1][2] are a sub class of porous materials, related to structures such as zeolites, metal organic frameworks, and covalent organic frameworks, but amorphous in nature, rather than crystalline. CMPs are also… …   Wikipedia

  • Crystallization of polymers — Spherulites viewed between crossed polarizers in an optical microscope. Crystallization of polymers is a process associated with partial alignment of their molecular chains. These chains fold together and form ordered regions called lamellae,… …   Wikipedia

  • industrial polymers, chemistry of — Introduction       structure and composition of chemical compounds made up of long, chainlike molecules (molecule).       What distinguishes polymers from other types of compounds is the extremely large size of the molecules. The size of a… …   Universalium

  • Environmental stress cracking — (ESC) is one of the most common causes of unexpected brittle failure of thermoplastic (especially amorphous) polymers known at present. Environmental stress cracking may account for around 15 30% of all plastic component failures in service.H. F …   Wikipedia

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