Abstract：
    Living polymerization has attracted widespread attentions due to its feasibility to offer the polymers with controlled molecular weight and narrow molecular weight distribution, well-defined block copolymers as well as terminally functionalized materials. Living anionic systems also have been well developed for various monomers, particularly for polymerization of conjugated dienes, due to their strong background of practical applications. Living radical polymerization has been gained such tremendous momentum since Matyjaszewski and Sawamoto first reported two different catalyst systems independently in 1995. However, such systems can neither be extended for olefin and dienes, nor synthesize polymers having strereospecific comformation. 
    Conventional Ziegler-Natta catalysts have been claimed to be the powerful tools for promoting regio- and/or stereospecific polymerization of 1,3-butadiene at high levels, whereas the molecular weight distribution of polymer is fairly broad mostly because of multiple active sites, slow initiation and chain transfer reaction.
    In this paper, we have explored coordination catalytic systems having natures of single active sites, weakened chain transfer reaction or reversible chain transfer reactions for synthesizing polybutadienes with narrow molecular weight, polybutadiene block polymer containing different stereospecific chain segments and block copolymers of polybutadiene with polar polymers.
 

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Biography:

Experience:
2012-：Professor, Changchun Institute of Applied Chemistry (CIAC)
             Dean, Key Lab of Synthetic Rubber 
             Chinese Academy of Sciences
2000-2012：Professor, CIAC
1998-2000: Senior scientist, Samsung General Chemicals.
1996-1998: Senior scientist, Samsung Advance Institute of Technology.
1995-1996: Associate professor, CIAC.
1993-1994: Visiting Scientist, Reading University, UK.
1987-1993: Research Assistant, CIAC
1984-1987: Master degree on polymer chemistry, CIAC

Research Filed:
-Design and synthesis coordination catalysts for synthetic rubber
-Development of synthetic rubber production technology