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The Affection Of Adding Nano-Polymer Adopting Solution Polymerization Method For The Broken Presure Of PMMA And PS

Posted on:2008-04-20Degree:MasterType:Thesis
Country:ChinaCandidate:Y FanFull Text:PDF
GTID:2121360215480799Subject:Applied Chemistry
Abstract/Summary:PDF Full Text Request
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.
Keywords/Search Tags:Solution polymerization, the precursors of nano-polymer, compound material, Self-assembly, broken pressure
PDF Full Text Request
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