本研究主要利用溶膠-凝膠法將不同側鏈基偶聯劑與1,3,4-噻二唑偶氮染料製備一系列之混成材。先利用濃鹽酸、甲酸與硫代胺脲加熱迴流方式反應合成中間體2-胺基-1,3,4-噻二唑,將其視為偶合鹽,以苯胺衍生物為重氮鹽與偶合鹽進行重氮反應,合成一系列1,3,4-噻二唑偶氮染料。進而將染料以固定比例之乙烯基三乙氧基矽烷(VTES)與不同比例的甲基三甲氧基矽烷(MTMS)、異丁基三甲氧基矽烷(IBTMOS)、辛基三甲氧基矽烷(OTES)偶聯劑產生水解聚縮合反應,製得不同側鏈基偶聯劑與噻二唑偶氮染料之混成材。藉由FT-IR、1H-NMR、29Si-NMR與EDS等儀器分析其化學結構。將所得之混成材分別對聚對苯二甲酸乙二酯(PET) 和聚對苯二甲酸丙二酯(PTT)織物進行染色加工,再藉由SEM 觀察PET與PTT加工織物其表面形貌。進而對加工後之PET與PTT織物分析多種物理性質包括接觸角、上色性、均染性、撥水性與透氣性等各項物性。
A series of some novel hybrid materials prepared via sol-gel process has been synthesized from various side chain coupler as precursors and heterocyclic 1,3,4-thiadiazole azo dyes. The start material 1,3,4-thiadiazole was synthesized from formic acid and thiosemicarbazide in reflux to get the 2-amino-1,3,4-thiadiazole. The 1,3,4-thiadiazole regards as coupling component were coupled with p-nitro aniline and p-methoxy aniline as diazo component at ice bath; respectively, to give the heterocyclic 1,3,4-thiadiazole azo dyes. Various side chain coupler /1,3,4-thiadiazole azo dyes hybrid materials were synthesized via sol-gel process with precursor system. Alternatively, the heterocyclic 1,3,4-thiadiazole azo dyes processed with hydrolysis-condensation reaction by the constant of vinyltriethoxysilane and MTMS, IBTMOS, and OTES; respectively, to react in appropriate proportion under catalyst. The structures of these hybrid materials were carried out by FT-IR, 1H-NMR, 29Si-NMR and EDS analysis. Various side chain coupler /1,3,4-thiadiazole azo dyes hybrid materials were used in dyeing PET and PTT fabrics then evaluated the morphology by scanning electron microscopy SEM analysis. Furthermore, the processed fabrics were analyzed various physical properties including the washing fastness, evenness, water contact angle and air permeability.