Citation: Ying Liu, Di Wu, Kun Zhang, Xiao-shuang Yin, Wen-zhong Yang. Narrow-disperse Highly Cross-linked Living Polymer Microspheres by Two-stage Precipitation Polymerization[J]. Chinese Journal of Polymer Science, ;2015, 33(3): 422-432. doi: 10.1007/s10118-015-1595-1 shu

Narrow-disperse Highly Cross-linked Living Polymer Microspheres by Two-stage Precipitation Polymerization

1.
School of Science, Nanjing University of Technology, Nanjing 210009, China

Corresponding author: Wen-zhong Yang,
Received Date: 29 May 2014
Revised Date: 19 August 2014

Narrow-disperse, surface-functionalized living polymer microspheres with uniformly cross-linked structures were prepared by two-stage precipitation copolymerization of styrene and divinylbenzene. The two-stage precipitation polymerization is composed of an initial conventional precipitation polymerization for the nucleation followed by a reverse atom transfer radical polymerization (reverse ATRP) for the controlled polymerization process. The polymerization parameters (including reaction time for the first stage, AIBN amount and monomer loading) have been studied to show significant influences on the morphologies. Moreover, narrower size distribution and an ATRP initiator-functional surface of resulting particles can be obtained by applying reverse ATRP to conventional precipitation polymerization in the second stage. Furthermore, the livingness of the resulting polymer microspheres was testified by their surface modification of poly[2-(dimethylamino) ethyl methacrylate] (PDMAEMA) brushes via surface-initiated ATRP (SI-ATRP).
- ATRP,
- Precipitation polymerization,
- Particle nucleation,
- Surface-initiated,
- Two-stage
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沈阳化工大学材料科学与工程学院沈阳 110142