Poly{(3-butyryl)　pyrrole-[2,　5-diyl(p-tetradecoxybenzylidane)]}(PBPDTBA)　was　synthesized　by　ultrasonic　irradiation　method,　and　then　poly{(3-butyryl)　pyrrole-[2,　5-diyl(p-tetradecoxybenzylidene)]}　(PBPDTBE)　was　prepared　by　reaction　of　PBPDTBA　with　chloranil.　Their　molecular　structures　and　properties　were　characterized　by　FT-IR　spectra,　UV-Vis　spectra,　TG　and　PL　spectra.　The　result　show　that　PBPDTBE　exhibits　good　solubility　in　organic　solvents　and　the　solubility　in　chloroform　is　0.66　g/mL.　The　optical　absorption　of　PBPDTBE　in　CHCl3　solution　and　PBPDTBE　film　is　broad　in　the　wavelength　range　of　400　nm~600　nm　and　the　absorption　peaks　are　located　around　455　nm　and　462　nm,　respectively.　Thermal　decomposition　processes　of　PBPDTBA　and　PBPDTBE　are　divided　into　two　steps,　which　correspond　to　the　fracture　of　butyryl　group　and　tetradecoxyphenyl　group　respectively,　and　the　initial　decomposition　temperature　is　210.45°C　and　230.01°C,　respectively.　PBPDTBA　and　PBPDTBE　are　both　green　light-emitting　materials,　and　the　maximum　emission　wavelengths　are　located　at　514　nm　and　520　nm,　respectively.