以原子轉移自由基聚合法合成聚苯乙烯-C60混成材料及其自組裝行為研究

Preparation of polystyrene-C60 hybrid materials through atom transfer radical polymerization (ATRP) and their self-assembled behavior.

彭康貞(Kang-Jen Peng)

指導教授 ： 劉英麟

中原大學/工學院/化學工程研究所/碩士(2010年)

https://doi.org/10.6840/cycu201000805

摘要

本研究利用原子轉移自由基聚合（ATRP）合成聚苯乙烯（PS）與碳奈米球(C60)的多段共聚合物，包括PS - C60、PS - C60 - PS、PS - C60 - PS - C60以及C60 - PS - C60、PS18 - C60 - PS - C60 - PS18、PS177 - C60 - PS - C60 - PS177、C60 - PS117 - C60 - PS - C60 - PS117 - C60等二系列。除了以凝膠滲透層析儀（Gel Permeation Chromatography, GPC）、傅利葉轉換紅外線光譜分析儀（Fourier Transform Infrared Spectrometer, FTIR）和紫外光光譜儀（UV-vis spectroscope，UV-vis）鑑定所合成的PS/C60多段共聚合物外，並將其溶於溶液中，以高解析穿透式電子顯微鏡（High Resolution Transmission Electron Microscopy, TEM）和掃描式電子顯微鏡（Scanning Electron Microscopy, SEM）觀察其自組裝的行為。將反應得到的C60-高分子混合材料溶解於氯仿及氯仿/甲醇混合溶液中，旋轉塗佈在矽晶圓及滴在銅網上，在電子顯微鏡的觀測下，自組裝形成奈米環及球的構形，且得到的環及球大小不均一。但在SEM下觀察Br-PS251-Br與C60形成之Polystyrene-C60混成材料，發現受PS長鏈的影響，其於矽晶圓上形成薄膜，進而影響了表面構型，因此Br-PS251-Br與C60形成之Polystyrene-C60混成材料於SEM下，幾乎無法觀察環狀構型。

關鍵字

聚苯乙烯 ； 自組裝 ； C60 ； ATRP

並列摘要

Poly(styrene) and C60 nanohybrids have been prepared through sequential atom transfer free radical polymerization (ATRP). Two series of samples have been prepared. One series has three samples of PS-C60, PS-C60-PS, PS- C60-PS-C60, and the other has another three samples of C60-PS-C60, PS177-C60-PS-C60-PS177, C60-PS117-C60-PS-C60-PS117-C60. The samples have been characterized with Fourier transform infrared, gel permeation chromatography, ultraviolent-visible spectroscopy, and thermogravimeteric analyzer. The self-assembly behaviors of the prepared samples have also been investigated with scanning and transmission electron microscopy. The samples self-assemble into nano-toroids and nanospheres in chloroform and in the mixed solvent of chloroform/methanol (1/1 v/v).

並列關鍵字

C60 ； PS ； ATRP ； self-assembled

參考文獻

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