Vinyl polymer
Vinyl polymers are a group of polymers derived from vinyl monomers of the type CH2=CHR. Their backbone is an extended alkane chain ...-CH2-CHR-CH2-CHR-..).[1] In popular usage, "vinyl" refers only to polyvinyl chloride (PVC).
Examples
Vinyl polymers are the most common type of plastic. Important examples can be distinguished by the R group in the monomer H2C=CHR:
- Polyethylene R = H
- polypropylene from propylene, R = CH3
- Polystyrene is made from styrene, R = C6H5
- Polyvinyl chloride (PVC) is made from vinyl chloride, R= Cl
- Polyvinyl acetate (PVAc) is made from vinyl acetate, R = O2CCH3
- Polyacrylonitrile is made from acrylonitrile, R = CN
Vinyl polymers are produced using catalysts. Ziegler–Natta catalyst is a typical commercial catalyst for polyethylene and polypropylene.
gollark: It is not, technically, a *laser*, as far as I know.
gollark: If you were at the centre of the moon or something, that would probably work somewhat as thermal shielding just because of how big those things are, so it would at least take a while for enough heat to reach you that it'd be a problem.
gollark: I wonder if you could somehow "skim" through the upper layers of the sun with a ridiculously large amount of mass to ablate and probably some stupidly high velocity.
gollark: A crater, probably, depending on how large it is.
gollark: The earth is large, and quite solid.
See also
References
- Kenneth S. Whiteley,T. Geoffrey Heggs, Hartmut Koch, Ralph L. Mawer, Wolfgang Immel (2005). "Polyolefins". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a21_487.CS1 maint: uses authors parameter (link)
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