【作者】 范玉；

【导师】 孟庆云；

【作者基本信息】 北京化工大学 ， 应用化学， 2007， 硕士

【摘要】 溶液聚合具有混合散热比较容易，生产操作和温度都易于控制，得到的聚合物分子量比较均匀的优点，本论文采用溶液聚合的方法，制得MMA和St的纳米高聚物前躯体。而有机玻璃具有表面硬度不高、易擦毛、抗冲击性能低和苯乙烯具有机械性能差，质硬而脆、表面硬度低，易刮伤的缺点，本论文将溶液聚合的方法制得MMA和St的纳米高聚物前躯体，分别添加到St和MMA中自组装制得纳米复合材料，得到的PMMA的纳米复合材料的破碎压力提高，而PS的纳米复合材料的破碎压力降低。主要工作如下：1．采用溶液聚合的方法，以丙酮为溶剂，过氧化二苯甲酰(BPO)为催化剂，在一定的温度、时间的条件下进行聚合，聚合得到含有MMA和St的纳米高聚物前躯体的溶液，并且在低温、搅拌的条件下，利用丙酮、甲基丙烯酸甲酯、苯乙烯易挥发的特点，得MMA和St的纳米高聚物前躯体。2．将得到的St的纳米高聚物前躯体添加到MMA中进行聚合，自组装制备了纳米复合材料，对得到的复合材料进行破碎压力的测试。添加了St纳米高聚物前躯体的PMMA复合材料的破碎压力比纯PMMA的破碎压力有所提高，韧性也有所增加。3．我们在添加了St的纳米高聚物前躯体的情况下，又添加了二茂铁的衍生物到MMA中进行聚合，对得到的复合材料进行破碎压力的测试。同上一个实验进行对比发现，添加了二茂铁衍生物后，MMA的聚合时间明显缩短，而且在室温条件下就可以发生聚合反应，但是添加了二茂铁衍生物的复合材料的破碎压力同纯PMMA相比较，破碎压力明显降低。4．将得到的MMA的纳米高聚物前躯体，添加到St中进行聚合，自组装制备了纳米复合材料，对得到的复合材料进行破碎压力的测试。微量的添加可以提高PS的破碎压力，添加量超过一定的值时，添加了MMA的纳米高聚物前躯体的PS的破碎压力就明显降低。5．在预聚MMA纳米高聚物前躯体的过程中，添加了二茂铁的衍生物，将得到的纳米高聚物前躯体添加到St中进行聚合，得到的复合材料同上一个实验进行对比，实验所得的复合材料的破碎压力明显降低。更多还原

【Abstract】 鈽匱he solution polymerization have the advantages that mixed thermal is easy, and the operation and temperature is easily controlled, and the molecular weight of the polymers are more uniformity. This paper uses the solution polymerization method to get the precursor of nano-polymer of St and MMA. The Perspex have the disadvantages that the surface hardness is low銆?rubbing hair is easy銆?performance impact is low, and the PS have the disadvantages that mechanical properties is poor銆?hard and brittle銆?surface hardness is low銆?abrasion is easy. In this paper adding the precursors of Nano polymer of St and MMA wich are polymerized by solution polymerization respectively to St and MMA self-assembly to get nano-compound materials, and the broken pressure of PMMA nano-compound material is improved, but the broken pressure of PS nano-compound material is lower. The main work as follows:鈽?. Adopting solution polymerization method, and the acetone is the solvent, the BPO is catalyst, polymerizing at specified temperature and time, and getting the solution contains the precursors of nano-MMA-polymer and nano-St-polymer. Then at low temperature mixing, making the use of the characteristic of volatilize of acetone銆?MMA銆?St, getting the precursors of nano-MMA-polymer and nano-St polymer.鈽?. Adding the precursors of nano-St-polymer to MMA polymerize, self-assembly to get nano-compound material ,and testing the broken pressure of the compound material. The broken pressure of PMMA compound material adding the precursors of nano-St-polymer is higher than that of pure PMMA, and the tenacity also improved.鈽?. Besides adding the precursors of nano-St-polymer, we add the ferrocene derivatives to MMA and polymerize, and testing the broken pressure of the compound pressure. Comparing the last experiment, after adding the ferrocene derivatives, the time of polymerization obviously shorten, and at laboratory temperature the polymerization can happen. Comparing the broken pressure of pure PMMA to that of the compound material added the ferrocene derivatives, the broken pressure of compound material reduce obviously.鈽?. Adding the precursors of nano-MMA-polymer to St polymerize, and testing the broken pressure of the compound material. Macro-addition can improve the broken pressure of PS, when the MMA/St is lower than certain value, the broken pressure of PS added the precursors of nano-MMA-polymer, the broken pressure of PS added the precursors of nano-MMA-polymer specially reduced.鈽?. During pre-polymerizing the precursors of nano-MMA-polymer, we add the ferrocene derivatives, and adding the precursors of nano-polymer to St to polymerize. Comparing the compound material to the last experiment, the broken pressure of the compound materials of the experiment is obviously reduced.更多还原