常溫下合成漆酚／桐油共緊樹脂之研究

Studies on the Synthesis of UruShiol / Tung Oil Copolymer Resins at Ambient Temperature

黃秋惠(Chiu-Hui Huang) ； 黃金城(Jin-Cherng Huang) ； 吳瑟鏗(Seh-Keng Wu) ； 阮巽雯(Syun-Wun Ruan) ； 吳聖安(Sheng-An Wu)

《林產工業》 25卷2期 (2006/06) Pp. 159-169

https://doi.org/10.6561/FPI.2006.25.(2).8

摘要

本研究係漆酚與桐油依不同重量比率混合，再添加Fe-salen及H_2O_2（aq）等觸媒，藉以探討常溫下合成漆酚／桐油共聚樹脂之可行性，所得結果歸納如下：漆酚／桐油依80／20比率混合且在1% Fe-salen及20%H_2O_2條件下，可以在常溫下合成共聚樹脂，其貯藏時間大於30天。GPC試驗知，未聚合前漆酚與桐油之數目平均分子量（M_n）分別為1,230及580，而共聚樹脂之M_n為2,900－3,700，此約為原先漆酚之3倍及桐油之5倍，且其多分佈指數大於1。在FTIR分析，添加觸媒後在1622、1595cm^(-1)之漆酚苯環骨架之C=C吸收峰有明顯減弱，而漆酚苯環上三個取代基在832cm^(-1)之吸收峰消失，且在1745cm^(-1)之羰基（C=O）吸收峰，亦有增加的趨勢。又從TLC分析知，漆酚與桐油在常溫下添加Fe- salen觸媒及H_2O_2（aq）可反應成共聚樹脂。

關鍵字

漆酚 ； 桐油 ； 共聚物 ； 膠體滲透層析（GPC） ； 傅立葉轉換紅外線光譜（FTIR）

並列摘要

To improve the defects of Chinese lacquer (Urushi) and tung oil, as well as to keep the original advantages of each coating film , the study employd the different proportion of urushiol/tung oil with the catalysis of Fe-salen and H_2O_2 (aq) under the ambient temperature to carry out the polymerizations, and then produced the copolymer coatings. These modified coatings were used to investigate their application on the feasibility of wood finishing. The results obtained are summarized as follows: The GPC tests showed that the number average molecular weigh (M_n) of urushiol and tung oil before polymerization were 1,230 and 580, respectively. The copolymer of M_n was about 2,900-3,700, which was higher than that of urushiol about 3 times and tung oil about 5 times. Besides the polydispersity were dished 1. After FTIR analysis, the absorbance peaks of C=C from 1622, 1595 cm^(-1) of urushiol aromatic rings was decreased significantly after adding catalysts. The peaks of 832 cm-l disappeared at three substitutes of urushiol aromatic rings. The peak at 1745 cm-1, a carbonyl (C=O), was increased. By using the method of TLC the result shows, the polymerization of urushiol/tung oil copolymer resins via Fe-salen and H_2O_2 (aq) under the ambient temperature could be obtained.

並列關鍵字

Urushiol ； Tung oil ； Copolymer ； Gel Permeation Chromatography (GPC) ； Fourier-Transform Infrared Spectrum (FTIR)