Friedel-Crafts Polyketones: Synthesis, Characterization and Antimicrobial Properties of Unsaturated Polyketones and Copolyketones Based on Difurfurylidene Cycloheptanone

Table 1

Elemental analyses, inherent viscosity, yield and color of polyketones IVa–d and coployketones V and VI.

Polymer; Code	Repeating unit	C%		H%		𝜂Inh	Yield%	Appearanc of  polymer
		Calcd.	Found	Calcd.	Found	(dI/g)
IVa	C25H18O5	75.38	74.43	4.52	4.26	0.37	68	Powder-yellow
IVb	C25H18O5	75.38	74.92	4.52	4.13	0.42	73	Powder-yellow
IVc	C23H22O5	73.02	72.58	5.82	5.58	0.56	76	Powder-yellow
IVd	C27H30O5	74.65	73.14	6.91	6.72	0.63	69	Powder- yellow
V	C52H36O8	79.19	77.87	4.56	4.41	0.52	85	Powder- yellow
VI	C48H44O8	77.01	76.72	5.88	5.32	0.46	81	Powder-yellow

* η Inherent viscosity measured in H₂SO₄ at 25°C.