Latex::latex    Plant::rubber    Journal::author    Species::title    Agrawal::other    Pages::system


Extraction of latex from a tree, for use in rubber production

A latex is a stable dispersion (emulsion) of polymer microparticles in an aqueous medium. Latex itself is natural, but synthetic latexes have been made. Synthetic latexes can be made by polymerizing a monomer such as styrene that has been emulsified with surfactants.

Latex as found in nature is a milky fluid found in 10% of all flowering plants (angiosperms).<ref name="Agrawal">{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> It is a complex emulsion consisting of proteins, alkaloids, starches, sugars, oils, tannins, resins, and gums that coagulate on exposure to air. It is usually exuded after tissue injury. In most plants, latex is white, but some have yellow, orange, or scarlet latex. Since the 17th century, latex has been used as a term for the fluid substance in plants.<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> It serves mainly as defense against herbivorous insects.<ref name="Agrawal"/> Latex is not to be confused with plant sap; it is a separate substance, separately produced, and with separate functions.

The word is also used to refer to natural latex rubber, particularly non-vulcanized rubber. Such is the case in products like latex gloves, latex condoms and latex clothing. Many people are allergic to rubber latex.

IUPAC definition.

Latex: Colloidal dispersion of polymer particles in a liquid.<ref name="terminology">{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref>Unknown extension tag "ref"

Synthetic latex: Latex obtained as a product of an emulsion,
mini-emulsion, micro-emulsion, or dispersion polymerization.<ref name="terminology"/>

Latex sections
Intro  Biology  Productive species  Defense function  Applications  Latex clothing  Allergic reactions  Environmental impact  See also  References  External links  

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