Effect of Branching Architecture on Glass Transition Behavior of Hyperbranched Copolystyrenes: the Experiment and Simulation Studies

Xiang Luo; Shi-jie Xie; Wei Huang; Bo-na Dai; Zhong-yuan Lu; De-yue Yan

doi:10.1007/s10118-016-1730-7

Your Location：

Home >

Browse articles >

Effect of Branching Architecture on Glass Transition Behavior of Hyperbranched Copolystyrenes: the Experiment and Simulation Studies

Updated：2021-06-21

- Effect of Branching Architecture on Glass Transition Behavior of Hyperbranched Copolystyrenes: the Experiment and Simulation Studies
- Chinese Journal of Polymer Science Vol. 34, Issue 1, Pages: 77-87(2016)
- Affiliations：
  
  a.School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
  b.Institute of Theoretical Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130021, China
  c.Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China
- Author bio：
  
  **Wei Huang (黄卫), E-mail: hw66@sjtu.edu.cn
  Zhong-yuan Lu (吕中元), E-mail: luzhy@jlu.edu.cn
- Funds：
- DOI：10.1007/s10118-016-1730-7
  CLC：
- Received：03 July 2015，
  
  Revised：2015-08-16，
  
  Accepted：23 August 2015，
  
  Published：2016-01
- Accepted：
Scan QR Code
Xiang Luo, Shi-jie Xie, Wei Huang, et al. Effect of Branching Architecture on Glass Transition Behavior of Hyperbranched Copolystyrenes: the Experiment and Simulation Studies[J]. Chinese Journal of Polymer Science, 2016, 34(1): 77-87.
DOI：

Xiang Luo, Shi-jie Xie, Wei Huang, et al. Effect of Branching Architecture on Glass Transition Behavior of Hyperbranched Copolystyrenes: the Experiment and Simulation Studies[J]. Chinese Journal of Polymer Science, 2016, 34(1): 77-87. DOI： 10.1007/s10118-016-1730-7.

摘要

Abstract

By controlling the feed ratio of CMS/styrene and the polymerization time

a series of hyperbranched copolystyrenes (HBCPS) were synthesized with comparable weight-averaged molecular weights (

) but different degree of branching (DB) through atom transfer radical self-condensing vinyl copolymerization (ATR-SCVCP) with CuBr/2

2¢- bipyridyl as the catalyst. The resulting HBCPS samples were used to investigate the effect of branching architecture on their glass transition behavior. With the DB increased

the glass transition temperatures (

) of HBCPS samples measured by DMA and DSC both decreased. Their spin-lattice relaxation times (

) of protons displayed the same downtrend with increasing DB. Besides

a correlation between the

s and the DB was well established by all-atom molecular dynamics (MD) simulations. The values of MD-determined

s are little higher than the corresponding experimental ones. However

the dependence of

s on DB is in good agreement with the experimental results

i.e

decreases both in experiments and simulations with increasing DB.

关键词

Keywords

references

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Alternating Poly(ether-alt-ester)s with High Glass Transition Temperature Enabled by Rotationally Constrained Biaryl Units

Machine Learning-assisted Prediction of Polymer Glass Transition Temperature: A Structural Feature Approach

Precise Pentamers with Diverse Monomer Sequences and Their Thermal Properties

Physical Properties of Polymers under Soft and Hard Nanoconfinement: A Review

Topology-regulated Co-assembly of Single Chain Polymer Nanoparticles and Block Copolymers into Hierarchical Micelle@Vesicle Composite Structures

Related Author

Xiao-Bing Lu

Ye Liu

Zheng-Fei Liu

Yu-Tao Wang

Hadi Shirali

Bardia Afsordeh

Jiang-Tao Xu

Kun-Kun Guo

Related Institution

State Key Laboratory of Fine Chemicals, Dalian University of Technology

Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, PO Box 15875-441, Tehran

Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran

College of Materials Science and Engineering, Hunan University

School of Chemical Engineering, UNSW Sydney

⁰