Polyisoprene

Description

A thermoplastic, rubbery polymer. Polyisoprene (cis-1,4-polyisoprene), is the primary component in natural rubber. Both the cis and trans forms of the polymer may be produced synthetically. The trans form resembles gutta-percha. Both types can be vulcanized with sulfur.

Synonyms and Related Terms

polyisoprène (Fr.); poliisopreno (Esp.); polisoprene (It.); poliisopreno (Port.); cis-1,4-polyisoprene; trans-1,4-polyisoprene;

FTIR

Other Properties

Soluble in aliphatic and aromatic solvents. Insoluble in acetone, diethyl ether. Burns with a dark yellow, sooty flame that smells like burnt rubber.

Composition	(C5H8)n
CAS	9003-31-0

Comparisons

General Characteristics of Polymers

Physical Properties for Selected Thermoset Resins

Authority

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 676

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

• Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000