Synthesis and asymmetric polymerization of a series of methyl-substituted triphenylmethyl methacrylate
β Scribed by Chuanfu Chen; Yonghong Yang; Fu Xi
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 144 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0887-624X
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## Abstract In this work, we propose a modified frontal polymerization method to build a uniform reaction front by gradually immersing the reacting mixture in a thermal bath. This scheme allows uniform materials to be obtained with nearly constant molecular weights and polydispersities and a low re
Methyl methacrylate was polymerized with Cp 2 YCl(THF) or IVB group metallocene compounds (i.e., Cp 2 ZrCl 2 and Cp 2 HfCl 2 , etc.), in the presence of a Lewis acid like Zn(C 2 H 5 ) 2 . The Lewis acid was complexed with methyl methacrylate, which avoided the metallocene compounds being poisoned wi