本研究主要目的是於水性聚氨酯（WPU）分散液中，加入AC單體（St、BA、MMA 及St/BA/MMA混合物）進行乳化聚合反應，以製備WPU/AC混成乳化液，其中WPU分散液係利用預聚合法(Prepolymer mixing process)合成m-TMXDI based的陰離子型水性PU，在預聚合法中係維持NCO/OH之當量比為1.8，而DMPA之使用量為8 wt%。於製備WPU/AC混成乳化液過程中，係使用SDS作為乳化劑，將AC單體之混合物加入反應器中。對於所製得之WPU/AC混成乳化液進行粒徑大小及穩定性之分析，並對所製得之薄膜進行機械性質及熱性質之分析。
本論文第一部份係著重於敘述WPU 及其混成物(WPU/BA, WPU/St and WPU/BA-St)之合成方法，形態及性質之研究；第二部份係著重於敘述WPU 及其混成物(WPU/BA-St, WPU/St-MMA, WPU/BA-MMA and WPU/BA-St-MMA)之合成方法，穩定性及性質之研究。對於WPU 及其混成物使用FTIR進行結構分析，使用動態光散射（DLS）及TEM進行粒徑及形態之分析，使用分散穩定性鑑定儀LUMiSizerR 之STEPTM 原理(Space and Time resolved Extinction Profiles)測得儲存壽命（shelf life）及粒徑大小，分析乳化液之穩定性（stability），對於所製得之薄膜，使用熱重量分析法（TGA）及應力應變曲線進行熱性質及機械性質之分析。

In this study, WPU/AC hybrid emulsions were prepared using the emulsion polymerization of AC monomer (St, BA, MMA and a mixture of St/BA/MMA) in the presence of WPU dispersion. WPU dispersion was synthesized with isocyanic acid, m-phenylenediiso-propylidene (m-TMXDI)-based anionic poly(urethane-urea) dispersions using the prepolymer mixing process. The equivalent ratio of NCO/OH was kept constant at 1.8, whereas 2,2-bis(hydroxyl methyl) propionic acid (DMPA) used was 8 wt%. AC monomer mixture was added to the reactor, containing WPU dispersion as a monomer emulsion feed, where sodium dodecyl sulfate (SDS) was applied as a short-chain emulsifying agent. WPU/AC hybrids were examined to determine the particle size and shelf life of the dispersions, as well as the mechanical and thermal properties of the cast films.
Part (i) describes the synthesis, morphology, and properties of WPU and hybrids (WPU/BA, WPU/St and WPU/BA-St), and part (ii) describes the synthesis, stability and properties of WPU and hybrids (WPU/BA-St, WPU/St-MMA, WPU/BA-MMA and WPU/BA-St-MMA). The structures of WPU and hybrids were characterized by Fourier transform infrared (FTIR) spectroscopy. The size and morphology of the latex particles were investigated using dynamic light scattering (DLS) and transmission electron microscopy (TEM), respectively. The stability of the emulsions was determined according to their shelf life and particle size using the dispersion analyser LUMiSizerR with STEPTM-Technology (Space and Time resolved Extiction Profile). The thermal and mechanical properties of these films were examined by thermogravimetric analysis (TGA) and strain-stress curves.

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