• 作者： Liu, Tuan-Chi; Chiu, Shwu-Jer
• 中文摘要： 氫化SBR的研究,是將SBR溶於環己烷中,在非均勻觸媒的存在下,於高壓斧中進行,在所測試的各觸媒中,僅白煙(aerosil)承載之銠觸媒具有活性。氫化反應之轉化率是以核磁共振儀來決定,反應的溫度及壓力範圍分別為313-343K及 2.07-4.14MPa,結果顯示反應僅選擇性的發生在SBR中的脂肪(aliphatic)不飽和鍵部位,SBR中的芳香(aromatic)不飽和鍵則不受影響。所得的反應模式顯示,反應速率是與脂肪不飽和鍵濃度的0.93次方成正比,與氫氣壓力的0.5次方成正比,活化能則為36.82kJ/mol。
• 英文摘要： Hydrogenation of SBR was studied in an autoclave in the presence of cyclohexane and a heterogeneous catalyst. Several catalysts were tested but only aerosil supported rhodium showed catalytic activity . The extent of hydrogenation was determined by a /sup 1/H-NMR spectrometer. Experimental variables such as reaction temperature(313-343K) and hydrogen pressure (2.07-4.14MPa) were investigated. The hydrogenation was found to occur only at aliphatic unsaturates. The aromatic unsaturates were not reduced. A rate model, with partial order of 0.93 and 0.50 with respect to the concentration of aliphatic unsaturates and the hydrogen pressure, was found to be adequate in describing the reaction. The apparent activation energy of the reaction was observed to be 36.82kJ/mol.
• 中文關鍵字： 橡膠; 氫化; 聚合物; 觸媒; 銠
• 英文關鍵字： Rubber; Hydrogenation; Polymer; Catalyst; Rhodium