atactic polymer


atactic polymer
атактический полимер
стереобеспорядочный полимер

English-Russian dictionary of chemistre. 2014.

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  • 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

  • atactic — adjective Etymology: International Scientific Vocabulary 2a + tactic Date: 1957 of, relating to, or being a polymer exhibiting no stereochemical regularity of structure < atactic polypropylene > compare isotactic …   New Collegiate Dictionary

  • atactic — /əˈtæktɪk/ (say uh taktik) adjective 1. relating to or afflicted with ataxia. 2. Chemistry of a polymer, having substituent groups or atoms arranged randomly along the backbone of a polymer chain. Also, ataxic …   Australian English dictionary

  • atactic — /ay tak tik/, adj. Chem. (of a polymer) not stereospecific; lacking tacticity. [1955 60; A 6 + tactic, back formation from TACTICITY] * * * …   Universalium

  • atactic — adjective a) Of or pertaining to ataxia b) Describing any regular polymer or other macromolecule in which the orientation of the subunits is random …   Wiktionary

  • atactic — a type of polymer chain configuration where side groups are randomly positioned on one side of the chain or the other …   Mechanics glossary

  • stereospecific polymer — /ˌstɛrioʊspəˌsɪfɪk ˈpɒləmə/ (say .stereeohspuh.sifik poluhmuh), /ˌstɪə / (say .stear ) noun a polymer whose molecular structure has a definite, regular spatial arrangement, in contrast to an atactic polymer. See isotactic, syndiotactic …   Australian English dictionary

  • catalysis — catalytic /kat l it ik/, adj., n. catalytical, adj. catalytically, adv. /keuh tal euh sis/, n., pl. catalyses / seez /. 1. Chem. the causing or accelerating of a chemical change by the addition of a catalyst. 2. an action between two or more… …   Universalium

  • Branching (chemistry) — [http://www.pslc.ws/macrog/pc.htm] Branching may result from the formation of carbon carbon or various other types of covalent bonds. Branching by ester and amide bonds is typically by a condensation reaction, producing one molecule of water (or… …   Wikipedia

  • Polypropylene glycol — or polypropylene oxide is the polymer of propylene glycol. Chemically it is a polyether. The term polypropylene glycol or PPG is reserved for low to medium range molar mass polymer when the nature of the end group, which is usually a hydroxyl… …   Wikipedia

  • Tacticity — (from Greek taktikos : of or relating to arrangement or order) is the relative stereochemistry of adjacent chiral centers within a macromolecule [ Introduction to polymers R.J. Young ISBN 0412221705 ] . The practical significance of tacticity… …   Wikipedia