本研究的工作主要利用沈澱聚合程序合成高分子微粒子，合成的奈米粒子由兩種主要單體所組成：一為具有磺酸基之電解質單體，2-丙烯醯胺甲基-丙烷磺酸(AMPS)；另一為具有三個乙烯基之三羥甲基丙烷三丙烯酸酯(TMPTA)。實驗分為兩個階段，首先利用沉澱聚合形成高分子核心，接著再藉由乳化輔助的方式使電解質單體聚合包覆核心而成為殼層。藉由調控反應溶液至θ-state，接著加入AMPS，以獲得交聯度較高並帶有親水性質之核殼粒子。由FTIR圖譜顯示粒子由TMPTA(n ̅= 1732 cm-1, 脂基 C=O)和AMPS (n ̅= 1040 cm-1, 磺酸基)組成。由DLS所測得的流體力學直徑結果為200到300奈米。 In this research, we investigate polymeric particles consisting two principal constituent monomers, of which one is electrolyte with sulfonic acid group: 2-Acrylamido-2-methyl-1-propane sulfonic acid (AMPS), and the other is multi-vinyl: 1, 1, 1-Trimethylolpropane triacrylate (TMPTA) were successfully synthesized by photoinitiated precipitation polymerization with 2-hydroxy-2-methylpropiophenone (UV1173). Synthesis was found to be composed of two stages. The early precipitation polymerization leads to the formation of nuclei. Subsequent emulsion-assisted polymerization permits the formation of electrolytic shell part over the core. The particle composition was revealed by FTIR, and the characterization of particle size was effectuated by both DLS . IR spectrum as shown below confirms that TMTPA(n ̅= 1732 cm-1, ester C=O) and AMPS(n ̅= 1040 cm-1, symmetric stretching sulfonic SO3- hydrated) both constitute significantly the particle. The particle size was measured to be about 200-300 nm by DLS.
