You found 7493 newsreels

View mode:
Filter
Selected filters
DocumentariesScientific filmsEducationals
Digitization
Resolution
Year of Release
from
to
Historical events
from
to
Search in
Film type
Film topics
Newsreel topics
Upload date, after
Sort by:

Catalog

Films, all genres

Film Macromolecular compounds.. (1984)

Macromolecular compounds. 1984

Documentary, 2 parts, duration: 0:18:50

The film tells about a variety of high-molecular compounds, methods for their preparation. F. for students in the course "General Chemistry".    Macromolecular compounds (polymers) are called organic compounds whose molecules consist of a large number of repeating units. Molecular weight polymers are usually very large. Polymers include - fiber, plastics and rubbers. Polymers are natural or synthetic origin, for example, polyethylene, polypropylene, synthetic rubbers. Polymers obtained by polymerisation reactions and polycondensation. In the polymerization with one another connect a large number of molecules, forming one large molecule, wherein the polymerization reaction in the molecule can join different materials. Polycondensation the formation of polymer macromolecules are allocated low-molecular substances, e.g., water. Polycondensation - step process. (Part 1 - Episode the atom Dyuma.Smysl macromolecule compounds. Polymer chains. Polymers. Formaldehyde, polyacetylenes. Organics. Synthesis. Etilep. Communication circuits radicals. Reaction progress. Gas - ethylene, solid. Polyethylene polymerization degree. Polycondensation. Phenol. Formaldehyde. A benzene ring. Part 2 - one to another. Properties and use of the polymers, homopolymers, copolymers. Managing End properties. Genetic engineering on the still level. Heat resistance. Thermoplastics. Rubber - ebony. Polymer Chemistry. Semiconducting properties.

Our website uses "cookies" to give you the best, most relevant experience. By continuing to browse the site, you agree to our use of cookies. See our User Agreement, Privacy Policy and Cookies Policy.