copolymer


copolymer
/koh pol"euh meuhr/, n.
a chemical compound of high molecular weight produced by polymerizing two or more different monomers together.
[1935-40; CO- + POLYMER]

* * *

      any of a diverse class of substances of high molecular weight prepared by chemical combination, usually into long chains, of molecules of two or more simple compounds (the monomers forming the polymer). The structural units derived from the different monomers may be present in regular alternation or in random order, or strings of several units of one kind may alternate with strings of another.

      Certain homopolymers have properties almost ideally suited to an intended application but are deficient in some respect. A copolymer with only a small proportion of a second monomer often possesses the desirable properties of the parent homopolymer, while the minor component lends the qualities formerly lacking. Synthetic fibres made from the homopolymer of acrylonitrile, for example, have excellent dimensional stability and resistance to weathering, chemicals, and microorganisms but poor affinity for dyes. Copolymerization of acrylonitrile with small amounts of other monomers yields the fibre Orlon, with the desirable qualities of the homopolymer and the advantage of dyeability.

      The marked elastomeric (rubberlike) properties of several copolymeric substances make them valuable in the manufacture of synthetic rubbers. See also polymer.

* * *


Universalium. 2010.

Look at other dictionaries:

  • copolymer — copolymer. См. кополимер. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • copolymer —  Copolymer  Сополимер   Разновидность полимеров, цепочки молекул которых состоят из двух или более различных структурных звеньев. Различают регулярные и нерегулярные сополимеры (большинство). Различные структурные звенья нерегулярных сополимеров… …   Толковый англо-русский словарь по нанотехнологии. - М.

  • copolymer — [kō päl′ə mər] n. Chem. a compound produced by copolymerization copolymeric [kō päl′əmer′ik] adj …   English World dictionary

  • Copolymer — Vinyl Copolymer Milk A heteropolymer or copolymer is a polymer derived from two (or more) monomeric species, as opposed to a homopolymer where only one monomer is used.[1] Copolymerization refers to methods used to chemically synthesize a… …   Wikipedia

  • Copolymer-1 — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Freiname Glatirameracetat Andere Namen L Alanin L Glutaminsäure L Lysin L Tyrosin Polymerisat 6,0:1,9:4,7:1,0 Copolymer 1 Summenforme …   Deutsch Wikipedia

  • Copolymer 1 — Wikipedia:Redaktion Chemie/ausgeblendete Strukturformel Allgemeines Freiname Glatirameracetat Andere Namen L Alanin L Glutaminsäure L Lysin L Tyrosin Polymerisat 6,0:1,9:4,7:1,0 Copolymer 1 Summenforme …   Deutsch Wikipedia

  • Copolymer — Copolymere oder Heteropolymere sind Polymere, die aus zwei oder mehr verschiedenartigen Monomereinheiten zusammengesetzt sind. Inhaltsverzeichnis 1 Einteilung 2 Beispiele 3 Siehe auch 4 Liter …   Deutsch Wikipedia

  • copolymer — a polymer that consists of two or more dissimilar mer units in combination along its molecular chains. block copolymer …   Mechanics glossary

  • copolymer —   n. a compound of high molecular weight produced by polymerizing two or more different monomers.    ♦ copolymerize v.i. & t. to become or make into a copolymer …   Dictionary of difficult words

  • copolymer — kopolimeras statusas Aprobuotas sritis aplinkos apsauga apibrėžtis Polimeras, sudarytas iš daugiau nei vieno monomero grandžių. atitikmenys: angl. copolymer šaltinis Lietuvos Respublikos aplinkos ministro ir Lietuvos Respublikos sveikatos… …   Lithuanian dictionary (lietuvių žodynas)


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.