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奈米二氧化矽接枝側 馬來酰亞胺 和環氧基 (epoxide groups) 的結構與熱性質特徵

奈米二氧化矽接枝側 馬來酰亞胺 和環氧基 (epoxide groups) 的結構與熱性質特徵 Journal of Colloid and Interface Science 328 (2008) 81–91 P. Vejayakumaran, I.A. Rahman , C.S. Sipaut, J. Ismail, C.K. Chee. 姓名 : 王俊傑 指導老師 : 陳 澄 河 教授 日期 :98 年 2 月. Abstract.

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奈米二氧化矽接枝側 馬來酰亞胺 和環氧基 (epoxide groups) 的結構與熱性質特徵

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  1. 奈米二氧化矽接枝側馬來酰亞胺和環氧基(epoxide groups)的結構與熱性質特徵 Journal of Colloid and Interface Science 328 (2008) 81–91 P. Vejayakumaran, I.A. Rahman, C.S. Sipaut, J. Ismail, C.K. Chee 姓名:王俊傑 指導老師: 陳 澄 河 教授 日期:98年2月

  2. Abstract • 以APTS和GPTS的前端甲氧基跟Silica表面進行水解縮合反應，而末端官能基則跟馬來醯亞胺(BMI)進行接枝反應。 • 2. 改質後的Silica奈米顆粒，可用FTIR、DSC、TGA-FTIR、CHN、MNR來分析特性描述。

  3. Experimental

  4. A 2g silica 25ml APTS 溶液 (1％v/v in toluene) ＋ 迴流110℃改質＋攪拌24hr 離心機 3000 rpm 離心分離用甲苯清洗3次 110℃烘乾12hr 得到Si-APTS

  5. B 2g Si-APTS 4g BMI ＋ 加50ml氯仿＋磁石攪拌24hr 離心機 3000 rpm 離心分離用氯仿和丙酮清洗3次 80℃烘乾 得到Si-APTS-BMI

  6. 6.25ml H2O 25ml GPTS 溶液 (1％v/v in EtOH) ＋ EtOH:H2O= 4:1 攪拌5hr水解 加入Silica 2g以磁石攪拌24hr 離心機 離心分離用乙醇清洗3次 110℃烘乾12hr

  7. Result and discussion

  8. Si-O-Si CH2 C=C C=O epoxide

  9. Q4=Si(OSi)4 Q3=Si(OSi)3OH T4+T’4=R’Si(OSi)3 T3+T’3=R’Si(OSi)2OH T2=R’Si(SiO)2OH

  10. 90.6℃ 122.1℃ 143.9℃

  11. Summary • BMI基團產生親核加成跟胺基團接枝; APTS和GPTS經由矽烷化縮合反應可跟Siilca表面進行改質，可由FTIR分析而得。 • CP/MAS NMR分析顯示在alkoxysilane groups會與silica產生共價鍵。 • TGA-FTIR分析證明在熱裂解上馬來醯亞胺跟環氧基會比烷基團更容易受硬化劑(DDM）影響。

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