Citation: Feng Liu, Hai-ying Tan, Tao Tang. SYNTHESIS AND CHARACTERIZATION OF RANDOM OR GRADIENT BUTADIENE-p-METHYLSTYRENE COPOLYMERS VIA ANIONIC POLYMERIZATION[J]. Chinese Journal of Polymer Science, ;2013, 31(12): 1647-1659. doi: 10.1007/s10118-013-1357-x shu

SYNTHESIS AND CHARACTERIZATION OF RANDOM OR GRADIENT BUTADIENE-p-METHYLSTYRENE COPOLYMERS VIA ANIONIC POLYMERIZATION

Feng Liu ^1,2,3 ,
Hai-ying Tan ^1,2,3 ,
Tao Tang ^4,,

1.
1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
2.
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
3.
4.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Corresponding author: Tao Tang,
Received Date: 24 December 2012
Revised Date: 4 March 2013

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 51073149 and 51233005).

Copolymers of 1,3-butadiene and p-methylstyrene (p-MS) were synthesized via anionic polymerization. A benzophenone-potassium complex was added to tune the reactivity ratio of the two monomers, leading to random and gradient composition along the copolymer chain. The overall composition and microstructure could be controlled and well characterized by GPC and 1H-NMR. The p-MS was distributed from gradient to random with increasing the content of the benzophenone-potassium complex, and the 1,2-microstructure in the polybutadiene sequence increased at the same time. The hydrogenation of the copolymer of 1,3-butadiene and p-MS resulted in the corresponding saturated copolymer with well-defined structure and narrow molecular weight distribution.
- Anionic polymerization,
- Butadiene,
- p-Methylstyrene,
- Random copolymer,
- Gradient copolymer
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