用马来酸酐和聚乙二醇1000合成了具有反应活性端基的聚乙二醇,用红外与核磁共振测试技术对产物进行了表征,并用产物对环氧丙烯酸树脂进行了改性;研究了反应温度、反应时间对反应及产物性能的影响. 结果表明,n(马来酸酐)∶n(聚乙二醇1000)=2.1∶1,在75 ℃、反应60 min,转化率高达95.2%. 用红外光谱对反应性聚乙二醇和环氧丙烯酸树脂的固化物进行了分析. 结果表明,反应性聚乙二醇参与了环氧丙烯酸树脂的固化反应,可在交联网络中构成不同长度的柔性链段,显著地提高了环氧丙烯酸树脂的冲击强度.
Polyethylene glycol with reactive chain ends was synthesized from maleic anhydride and polyethylene glycol and used as a modifier for the epoxy acrylate resin. The product was characterized by FTIR and 1H NMR. The influence of reaction temperature and time on the reaction and properties of the reactive polyethylene glycol is discussed. When the molar ratio of the maleic anhydride and polyethylene glycol was 2.1∶1, the conversion rate of the reaction reached 95.2% at 75 ℃ for 60 min. The cured sample of reactive polyethylene glycol with epoxy acrylate resin was characterized by FTIR. The results indicate that the reactive polyethylene glycol participated in the curing reaction of the epoxy acrylate resin, forming soft segments in the network, which significantly increased the impact strength of the epoxy acrylate resin.
参考文献
| [1] | JIN Yang-Zhi(金养智),HONG Xiao-Yin(洪啸吟).Paint Coatings Ind(涂料工业)[J],1999,29(12):30 |
| [2] | Li Bassi G,Broggi F.Polym Paint Colour J[J],2001,178(4 210):1 973 |
| [3] | Decker C.Surf Coat Int[J],2000,(4):173 |
| [4] | Uminski M,Saija L M.Surf Coat Int[J],2001,(6):244 |
| [5] | WANG De-Hai(王德海),JIANG Ling(江棂).UV-Curable Material Theory and Application(紫外光固化与应材料理论用)[M].Beijing(北京):Science Press(科学出版社),2001:21 |
| [6] | Nagarajan R.Baltimore:Rad Tech International North America[C],Wisconsin,2000,366 |
| [7] | ZHANG Shi-Xi(张士茜),YIN Hua-Bing(尹华兵),REN Xiao-Xiu(任孝修).Paint Coatings Ind(涂料工业)[J],1998,28(11):7 |
| [8] | CHU Heng(褚衡),WANG Yan-Wu(王燕舞),LI Chun-Qing(李纯清).Chem New Mater(化工新型材料)[J],2000,28(12):31 |
| [9] | Oprea S,Vlad S,Stanciu A,Macoveanu M.Eur Polym J[J],2000,36:37 |
| [10] | CAI Zhen-Yun(蔡振云),WEI Wei(魏巍).Zhejiang Chem Ind(浙江化工)[J],2006,37(9):5 |
| [11] | LV Jun-Liang(吕君亮),ZHANG Li(张力),SHI Guang(石光),CHAI Song-Gang(柴颂刚).J South China Normal Univ(Nat Sci Edn)(华南师范大学报(自科学然版))[J],2007,3:84 |
| [12] | ZHAI Yuan-Ping(翟媛萍).Doctoral Dissertation([博士学位论文]).Nanjing(南京):Nanjing University of Science and Technology(南京理工大学),2004:25 |
| [13] | ZHANG Wan-Zhong(张万忠),QIAO Xue-Liang(乔学亮),LUO Lang-Li(罗浪里),CHEN Jian-Guo(陈建国).Chem Reag(化学试剂)[J],2006,28(5):257 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%