APEO	aromatic polyester with—O—spacer
APE6	aromatic polyester with—(CH2)6—spacer
APE8	aromatic polyester with—(CH2)8—spacer
APEr.ch.	rigid chain aromatic polyester
M w	weight-average molar mass
M 0	the mass of the macroinitiator monomer unit
M APE	the macroinitiator molar mass
N 0	the degree of polymerization of the macroinitiator
L 0	the length of the monomer unit of the macroinitiator
L	the length of the macroinitiator macromolecule
A	the Kuhn segment length
M s	the mass of the side chain
N s	the degree of polymerization side chains
M 0s	the mass of the side chain monomer unit
λ	the length of the projection of the alkylene bond onto the direction of the PiPrOx chain
n	the number of side chains
z	the density of side chains grafting
ΔL	the distance between the grafting points along the main chain
δ	the degree of shielding of the backbone by side chains