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林产化学与工业 ›› 2016, Vol. 36 ›› Issue (2): 87-93.doi: 10.3969/j.issn.0253-2417.2016.02.013

• 研究报告 • 上一篇    下一篇

脱氢枞酸基ATRP引发剂的合成与表征

俞娟1,2, 王利军1,2, 刘少峰1,2, 王春鹏1,2, 王基夫1,2, 储富祥1,2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程重点开放性实验室;江苏省生物质能源与材料重点实验室, 江苏 南京 210042;
    2. 中国林业科学研究院 林业新技术研究所, 北京 100091
  • 收稿日期:2015-03-19 出版日期:2016-04-25 发布日期:2016-04-26
  • 通讯作者: 王基夫,副研究员,博士,主要从事生物质材料研究;E-mail:wjf118@126.com。 E-mail:wjf118@126.com
  • 作者简介:俞娟(1989—),女,河南信阳人,博士生,主要从事生物质材料研究
  • 基金资助:
    国家自然科学基金资助项目(31200447)

Synthesis and Characterization of Dehydroabietic Acid Derived ATRP Initiator

YU Juan1,2, WANG Li-jun1,2, LIU Shao-feng1,2, WANG Chun-peng1,2, WANG Ji-fu1,2, CHU Fu-xiang1,2   

  1. 1. Institute of Chemical Industry of Forestry Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering, SFA, Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2015-03-19 Online:2016-04-25 Published:2016-04-26

摘要: 以脱氢枞酸为原料,通过酰氯化得到脱氢枞酸酰氯(DA-Cl)后与乙二醇(EG)反应合成脱氢枞酸羟乙酯(DA-EH),然后再与2-溴代异丁酰溴(2-BiBr)进行酯化反应,合成了脱氢枞酸基原子转移自由基聚合(ATRP)引发剂——脱氢枞酸(2-溴代异丁酸乙基)酯(DA-2-iBBrEH)。通过单因素试验考察了不同条件对合成DA-EH和DA-2-iBBrEH的影响规律。结果表明,DA-EH合成的优化条件为:催化剂为4-二甲氨基吡啶(DMAP),n(DA-Cl):n(EG):n(DMAP)为1:5:5,反应时间5 h,反应温度50 ℃;DA-2-iBBrEH合成的适宜条件为:催化剂为DMAP,n(DA-EH):n(2-BiBr):n(DMAP)为1:2:2。利用傅里叶红外光谱(FT-IR)、核磁共振氢谱(1H NMR)和核磁共振碳谱(13C NMR)对两者的结构进行了确证。以DA-2-iBBrEH为引发剂,采用ATRP法制备了聚甲基丙烯酸甲酯均聚物(PMMA)。GPC测试结果表明,DA-2-iBBrEH具有良好的ATRP反应引发活性,所制备的PMMA的数均相对分子质量(Mn)为8 500,相对分子质量分布(PDI)为1.3。

关键词: 脱氢枞酸, ATRP引发剂, 合成

Abstract: Dehydroabietic acid derived ATRP initiator, dehydroabietic acid (2-isobutyric acid bromide) ethyl ester of (DA-2-iBBrEH), was synthesized by esterification of 2-bromoisobutyryl bromide (2-BiBr) and dehydroabietic acid 2-hydroxyethyl ester (DA-EH) which was obtained from the reaction of ethylene glycol (EG) and dehydroabietic chloride(DA-Cl) with dehydroabietic acid as raw material. Single-factor experiments were employed to investigate the effects of reaction conditions on the preparation of DA-EH and DA-2-iBBrEH. The results showed that the optimized conditions of DA-EH preparation were summarized as 4-dimethyaminopyridine (DMAP) using for catalyst,n(DA-Cl):n(EG):n(DMAP)=1:5:5, reaction time 5 h and reaction temperature 50 ℃. The optimized reaction ratio and catalyst of the preparation of DA-2-iBBrEH were n(DA-EH):n(2-BiBr):n(DMAP)=1:2:2 and DMAP, respectively. Then the resulting products were characterized by FT-IR, 1H NMR and 13C NMR. Subsequently, poly(methyl methacryalte)(PMMA) was prepared using DA-2-iBBrEH as initiator. The GPC results showed that the molecular weight of PMMA was about 8 500 and PDI was 1.3. This indicated that DA-2-iBBrEH was a good ATRP initiator.

Key words: dehydroabietic acid, ATRP initiator, synthesis

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