ABSTRACT
Polymers containing cardo groups and related groups concern to cardo polymers of many classes [1-4] and as a rule are heterochain polymers. However, polymers in which phthalide groups and related groups are connected with one another by hydrocarbon structures without heteroatoms have been prepared as follows:
X
C
nY
R ,,R = CH2
CH2 , (1)
I
X Y Polymer
Sulfophthalides
Synthesis of such polymers was carried out by both polymerization [5] and polycondensation [6]. Polymer synthesis by polycondensation was provided by using of new approach to carrying out of polycondensation. In last year interest to this polymers, especially to poly(diphenylene phthalide), has been increased due to revealing of novel valuable properties for these polymers (effect of electron switching, change of optical, and magnetic properties in result of external infl uences and others) [7].
