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Nucleation and crystallization of H-shaped (PS)2PEG(PS)2 block copolymers

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Abstract

A series of H-shaped (PS)2PEG(PS)2 block copolymers with different PS chain lengths were prepared. The influence of different confinements active on the crystallization and self-nucleation (SN) behavior of the PEG blocks was investigated by differential scanning calorimetry (DSC). When the content of the crystalline block was high, a classical SN behavior was obtained. The block copolymer with PEG content of 49% (by weight) showed a classical SN behavior with a narrow self-nucleation domain and had bimodal crystallization exotherms. When the PEG dispersed as separated microdomains in the block copolymer, the self-nucleation domain disappeared and only annealing was observed.

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Authors and Affiliations

  1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China

    Ying-ying Pan, Xi-fei Yu, Tong-fei Shi  (石彤非) & Li-jia An  (安立佳)

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China

    Ying-ying Pan

Authors
  1. Ying-ying Pan
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  2. Xi-fei Yu
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  3. Tong-fei Shi  (石彤非)
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  4. Li-jia An  (安立佳)
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Corresponding authors

Correspondence to Tong-fei Shi  (石彤非) or Li-jia An  (安立佳).

Additional information

This work is supported by the National Natural Science Foundation of China (No. 50503022) Programs and the Fund for Creative Research Groups (No. 50621302)

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Pan, Yy., Yu, Xf., Shi, Tf. et al. Nucleation and crystallization of H-shaped (PS)2PEG(PS)2 block copolymers. Chin J Polym Sci 28, 347–355 (2010). https://doi.org/10.1007/s10118-010-9025-x

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  • DOI: https://doi.org/10.1007/s10118-010-9025-x

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