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Citation: Li Weidong, Fang Tianru, Huang Baotong. THE RELATIONSHIP BETWEEN CRYSTALLIZATION BEHAVIOR AND MORPHOLOGY OF PDMS IN POLY(BUTADIENE-b-DIMETHYLSILOXANE)[J]. Chinese Journal of Applied Chemistry, ;2016, 4(5): 74-77. shu

THE RELATIONSHIP BETWEEN CRYSTALLIZATION BEHAVIOR AND MORPHOLOGY OF PDMS IN POLY(BUTADIENE-b-DIMETHYLSILOXANE)

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Corresponding author: Huang Baotong,
Received Date: 24 March 1986
Available Online: 14 February 1987

DSC results of poly(butadiene-b-dimethylsiloxane) diblock copolymers(PB-PDMS) with defined composition and molecular weight and narrow molecular weight distribution, synthesized by anionic sequential polymerization, showed that T_g of both blocks did not change with molecular weight and composition of the block copolymers, indicating a phase separation of the blocks. The crystallization behavior of PDMS block, however, was found to be effected by the composition and molecular weight of the block copolymers. TEM graphs and DSC results showed a clear relationship between crystallization behavior of PDMS and the morphology of PB-PDMS.
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