Flory_convention Knowpia

In polymer science, the Flory convention is a convention for labelling rotational isomers of polymers. It is named after nobel prize-winning Paul Flory.^[1]^[2]

The convention states that for a given bond, when the dihedral angle formed between the previous and subsequent bonds projected on the plane normal to the bond is 0 degrees, the state is labelled as "trans", and when the angle is 180 degrees, the angle is labelled as "cis".

References edit

^ Flory PJ (1941). "Molecular Size Distribution in Three-Dimensional Polymers: I, Gelation". J. Am. Chem. Soc. 63 (11): 3083. doi:10.1021/ja01856a061.
^ Morris PJT (1986). "Polymer Pioneers: A Popular History of the Science and Technology of Large Molecules". Center for History of Chemistry, Philadelphia.

[Flory1941-1] Flory PJ (1941). "Molecular Size Distribution in Three-Dimensional Polymers: I, Gelation". J. Am. Chem. Soc. 63 (11): 3083. doi:10.1021/ja01856a061.

[Morris1986-2] Morris PJT (1986). "Polymer Pioneers: A Popular History of the Science and Technology of Large Molecules". Center for History of Chemistry, Philadelphia.

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