【作者】 周立宏；

【导师】 唐辉；

【作者基本信息】 昆明理工大学 ， 应用化学， 2005， 硕士

【摘要】 本论文以松节油为主要原料进行环氧化制得了α-环氧蒎烷。在两种条件(催化剂和无催化剂)下实现了环氧蒎烷与顺丁烯二酸酐的热引发和微波引发共聚合反应,产物为一种新型的不饱和聚酯。采用溶解沉淀的方法对共聚产物进行分离提纯,用紫外分光光度法检测了产物提纯的程度;在无催化剂和DMC催化剂的共聚反应中,分别研究了反应时间、温度、原料配比对热聚合产物的影响及反应时间、微波功率、原料配比对微波共聚产物的影响:在α,α’-联呲啶催化剂下,于室温条件下实现了环氧蒎烷与顺丁烯二酸酐的共聚合。本文还使用紫外光谱、红外光谱、粘度测定、核磁共振等方法对共聚产物进行了分析,研究了环氧蒎烷与顺丁烯二酸酐共聚合产物的特性。 本论文研究结果表明,在无催化剂条件下,环氧蒎烷与顺丁烯二酸酐热聚合反应的最佳条件为:80℃下反应4小时,使用DMC催化剂可使共聚物的分子量增高,使用α,α-联吡啶催化剂可获得分子量更大的固态聚合产物。对环氧蒎烷与顺丁烯二酸酐开环共聚反应中反应混合物紫外吸光度的变化规律的研究结果表明,反应中反应混合物中218nm处的吸光度基本稳定,随反应时间的延长反应混合物粘度增大。更多还原

【Abstract】 In this paper, α - pinene from natural product was used for the main original material and pinene epoxides was produced. Copolymerization between epoxides and maleic anhydride was completed by two different polymerization methods (heat and microwave energy induced respectively) with catalysts and without catalysts. New unsaturated polyester was synthesized. Dissolution-precipitation was used in the course of separation and of the copolymer purification and the UV-vis absorption of the upper layer solution obtained from the dissolution-precipitation separations was measured. It shows the absorption regularity of impurity. In the copolymerization without catalyst or with double metal cyanide complex catalysts, the influence of reaction time, reaction temperature and mole ratio on heat polymerization was investigated as well as the dependence of reaction time, microwave power and mole ratio on microwave polymerization. In the copolymerization under the condition of α , α ’- bipyridine catalyst, copolymer was synthesized between pinene epoxides and maleic anhydride under room temperature. In this paper, UV-vis spectrum, IR spectrum, viscosity measurement and ~1H NMR spectra of polymer were provided in order to show the characteristic of copolymer between pinene epoxides and maleic anhydride.The following conclusions were drawn in this paper. Without catalyst, reacting 4h under 80°C had the best condition and the quality of products improved greatly. Use of double metal cyanide complex catalysts makes molecule of copolymer increased, and a , a ’-bipyridine catalyst makes solid polymer formed. Initial study shows the UV-vis of maleic anhydride keep stable on which UV-vis spectrum in ring-opening copolymerization between pinene epoxides with maleic anhydride. However, the changing of viscosity of the reaction mixture along with the reaction time shows that viscosity ascended continually.更多还原