Overcoming the Trade-off between Toughness and Stiffness of Fully Polymer-based Alloys by Elastomeric Salami Particles through Reactive Blending

Yan Xia; Ming-Hui Sang; Xiao Wang; Ning He; Heng-Ti Wang; Yong-Jin Li

doi:10.1007/s10118-025-3541-1

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Overcoming the Trade-off between Toughness and Stiffness of Fully Polymer-based Alloys by Elastomeric Salami Particles through Reactive Blending

RESEARCH ARTICLE | Updated：2026-02-13

- Overcoming the Trade-off between Toughness and Stiffness of Fully Polymer-based Alloys by Elastomeric Salami Particles through Reactive Blending
- Chinese Journal of Polymer Science Vol. 44, Issue 3, Pages: 675-687(2026)
- Affiliations：
  
  a.College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
  b.Zhejiang-South Africa Joint Laboratory of Sustainable Polymer Composite Materials and Technology, Hangzhou Normal University, Hangzhou 311121, China
- Author bio：
  
  hengti-wang@hznu.edu.cn (H.T.W.)
  yongjin-li@hznu.edu.cn (Y. J. L.)
- Funds：
- DOI：10.1007/s10118-025-3541-1
  CLC：
- Received：09 October 2025，
  
  Accepted：16 December 2025，
  
  Online First：06 February 2026，
  
  Published：15 March 2026
- Accepted：
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Xia, Y.; Sang, M. H.; Wang, X.; He, N.; Wang, H. T.; Li, Y. J. Overcoming the trade-off between toughness and stiffness of fully polymer-based alloys by elastomeric salami particles through reactive blending. Chinese J. Polym. Sci. 2026, 44, 675–687

Yan Xia, Ming-Hui Sang, Xiao Wang, et al. Overcoming the Trade-off between Toughness and Stiffness of Fully Polymer-based Alloys by Elastomeric Salami Particles through Reactive Blending[J]. Chinese Journal of Polymer Science, 2026, 44(3): 675-687.
Xia, Y.; Sang, M. H.; Wang, X.; He, N.; Wang, H. T.; Li, Y. J. Overcoming the trade-off between toughness and stiffness of fully polymer-based alloys by elastomeric salami particles through reactive blending. Chinese J. Polym. Sci. 2026, 44, 675–687 DOI： 10.1007/s10118-025-3541-1.

Yan Xia, Ming-Hui Sang, Xiao Wang, et al. Overcoming the Trade-off between Toughness and Stiffness of Fully Polymer-based Alloys by Elastomeric Salami Particles through Reactive Blending[J]. Chinese Journal of Polymer Science, 2026, 44(3): 675-687. DOI： 10.1007/s10118-025-3541-1.

摘要

By employing the reactive processing

a facile approach was developed in this work to overcome the performance t

rade-off between toughness and rigidity of all-polymer alloys

via

constructing elastomeric salami particles within engineering plastic matrix.

Abstract

Rubber-toughened thermoplastic materials have become ubiquitous in modern society owing to their lightweight nature and desirable combination of advantageous performances. Despite the ever-increasing demand

the development of polymer alloys that are lightweight

high-strength

and high-toughness remains an ongoing challenge. Inspired by the unique “salami” microstructure from commercial acrylonitrile butadiene styrene copolymer (ABS) and high-impact polystyrene (HIPS)

a facile approach was developed to overcome the trade-off between enhancing the toughness and rigidity of fully polymer-based alloys by virtue of elastomeric salami particles. This strategy entails pre-grafting rigid poly(lactic acid) (PLLA) chains with glycidyl methacrylate-grafted octene ethylene copolymer (POE-

-GMA) using complementary reactive groups. It can be envisaged that the PLLA grafts featuring strong incompatibility with polypropylene (PP) remain fixed in elastomer phase upon the subsequent melt compounding

facilitating the

in situ

formation of “hard core (PLLA)-soft shell (polyolefin elastomer

POE)” particles in polypropylene (PP) matrix. The all-polymer alloys containing elastomeric salami particles demonstrated unprecedented performance combinations

including upper notched impact strengths (56.8 kJ/m

)

even higher tensile strength (36.8 MPa)

and Young’s modulus (0.93 GPa) than that of the PP matrix. Furthermore

these materials are lightweight without the incorporation of reinforcing nano-fillers

which is competitive with industrial engineering plastics. It is highly anticipated that this universal and highly efficient protocol will be appropriate for arbitrary rubber toughened/reinforced systems

offering a paradigm in the design of advanced all-polymer alloys.

关键词

Keywords

references

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