Polyvinylidene chloride

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Description

A thermoplastic polymer that is commonly called saran. Polyvinylidene chloride forms films that are impermeable to vapors, moisture, and oxygen. It is most often used as a barrier film for packaging. In an eco-friendly step, the brand name 'Saran Wrap' product changed formulations in 2004 to polyethylene film.

See also saran film.

Synonyms and Related Terms

poly(vinylidene chloride); PVDC; poli(cloruro de vinilideno) (Esp.); chlorure de polyvinylidène (Fr.); polivinilidene cloruro (It.); cloreto de polivinilideno (Port.)

Examples: saran; Cryovac

FTIR

AaiSARAN.jpg

FTIR

Saranfiberkj1.jpg


Other Properties

Burns with green flame producing pungent odor and evolving HCl.

Turns yellow or brown when exposed to alkalis.

Melting Point 185-200
Density 1.86-1.88

Hazards and Safety

Combustible but self-extinguishing. May release acids when heated.

Comparisons

Physical Properties for Selected Thermoplastic Resins

General Characteristics of Polymers


Sources Checked for Data in Record

  • Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993

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