of the two different side chains was observed [162]. The side chain of block
copolymer 42f [154] was converted to the naphthalimide moiety, as shown
in Scheme 57. The diblock copolymer 42g [159] consists of a block made from
a random copolymerization of hexylthiophene monomer and (1,3-dioxa-2-octyl)
thiophene monomer and the pure P3HT block. The 1,3-dioxone moiety was
converted to the formyl group, followed by introduction of fullerene C60 with the
aid of N-methylglycine. In the block copolymer 42h, the chiral segment influences
the supramolecular organization of the P3HT segment [160].
Scheme 56 Block copolythiophenes
Scheme 57 Synthesis of polythiophene having naphthalene diimide moiety
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Y. Ohta and T. Yokozawa
copolymer 42f [154] was converted to the naphthalimide moiety, as shown
in Scheme 57. The diblock copolymer 42g [159] consists of a block made from
a random copolymerization of hexylthiophene monomer and (1,3-dioxa-2-octyl)
thiophene monomer and the pure P3HT block. The 1,3-dioxone moiety was
converted to the formyl group, followed by introduction of fullerene C60 with the
aid of N-methylglycine. In the block copolymer 42h, the chiral segment influences
the supramolecular organization of the P3HT segment [160].
Scheme 56 Block copolythiophenes
Scheme 57 Synthesis of polythiophene having naphthalene diimide moiety
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Y. Ohta and T. Yokozawa