PROBLEM TO BE SOLVED: To provide near infrared (NIR) polymers that combine a low band gap, charge neutrality, water solubility, and functionality in one package.SOLUTION: The present invention provides polymer materials comprising a copolymer of a first monomer of a structure represented by the following formula and a thiophene monomer and further modified with any desired functional group.COPYRIGHT: (C)2016,JPO&INPIT【課題】低バンドギャップ、電荷的中性、水溶性及び機能性を一体化した近赤外(NIR)ポリマーの提供。【解決手段】下記に代表される構造の第一のモノマー及びチオフェン系モノマーとのコポリマー、更に任意の所望の官能基で修飾したポリマー材料。【選択図】なし