Citation: Jiu Cun Chen, Yun Pu Wang, Hao Dong Wang, Shuo Yun Wei, Hong Jun Li, Xiao Dong Yan. Preparation of polymer brushes on attapulgite surfaces via a combination of CROP and click reaction[J]. Chinese Chemical Letters, ;2010, 21(4): 496-500. doi: 10.1016/j.cclet.2009.11.025 shu

Preparation of polymer brushes on attapulgite surfaces via a combination of CROP and click reaction

a Institute of Polymer, Key Laboratory of Polymer Materials of Gansu Province, Northwest Normal University, Lanzhou 730070, China;
b Department of Chemistry and Chemical Engineering, Ankang University, Ankang 725000, China

Received Date: 24 August 2009

In this work,by a combination of controlled ring-opening polymerization(CROP)and click reaction,we reported a facile and useful method to synthesize linear poly(ε-caprolactone)at attapulgite nanocomposites with well-defined structures.For this,first,the chlorine terminated attapulgite was prepared by the self-assembly of 3-chloropropyltrimethoxysilane from the surfaces of attapulgite.And then,the terminal chlorines of modified attapulgite were substituted with azido groups.As the second step,linear propargyl-terminated poly(ε-caprolactone)(PCLs)with different molecular weights were synthesized by the CROP of ε-CL monomer in toluene with Sn(Oct)₂ as a catalyst and propargyl alcohol as an initiator.Finally,the azido-terminated attapulgites were reacted with propargyl-terminated PCLs via the click reactions.
- Attapulgite,
- CROP,
- Click chemistry,
- Surface modification
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