• Study on Compatibility of Aliphatic Polyketone/poly(acrylonitrile-r-methyl methacrylate) Blend
  • Jungyeon Park and Younggon Son*,†

  • Korea Automotive Technology Institute, 303 Pungse-ro, Pungse-myeon, Dongnam-gu, Cheonan-si, Chungnam 31214, Korea
    *Advanced Materials Science and Engineering, College of Engineering, Kongju National University, Cheonan, Chungnam 31080, Korea

  • 지방족 폴리케톤/폴리아크릴로니트릴-메타아트릴레이드 공중합체 블렌드의 상용성에 관한 연구
  • 박정연 · 손영곤*,†

  • 한국자동차연구원, *공주대학교 공과대학 신소재공학부

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.


Abstract

To improve the properties of aliphatic polyketone (PK), which has limited applicability due to its low thermal stability, we prepared blends of PK and poly(acrylonitrile-r-methyl methacrylate) (p(AN-r-MMA) to evaluate their compatibility and physical properties. Two types of PK with different propylene contents and p(AN-r-MMA) copolymers with varying acrylonitrile (AN) contents were synthesized and melt-blended. The morphology, thermal behavior, and mechanical properties of the blends were analyzed, and the possibility of crosslinking reactions involving PK was investigated using FTIR spectroscopy. The results showed that increasing the AN content in p(AN-r-MMA) enhanced its compatibility with PK and generally improved the impact strength. In particular, at high AN content, chemical reactions between PK and p(AN-r-MMA) led to the formation of crosslinked polymers, which contributed significantly to the enhanced impact strength.


이 연구는 열안정성이 낮아 활용에 제약이 있는 지방족 폴리케톤(PK)의 물성을 개선하기 위해 poly(acrylonitrile-r-methyl methacrylate) (p(AN-r-MMA))와 블렌드를 제조하고, 이들의 상용성과 물리적 특성을 평가하였다. 실험에서는 서로 다른 propylene 함량을 가진 두 종류의 PK와 다양한 AN 함량을 가진 p(AN-r-MMA)를 합성하여 용융 블렌드한 후, 형태학, 열분석, 충격강도 시험, FTIR 분석 등을 통해 상분리 여부, 열적 특성 변화, 기계적 물성 향상 및 가교화 가능성을 조사하였다. 그 결과, p(AN-r-MMA) 내 AN 함량이 증가할수록 PK와의 상용성이 증가하며, 충격강도 또한 상승하는 경향을 보였다. 특히 AN 함량이 높은 조성에서는 PK와 화학적 반응을 통해 가교화된 고분자가 형성되어 충격강도 증가에 기여한 것으로 나타났다.


Keywords: aliphatic polyketone, poly(acrylonitrile-r-methyl methacrylate), miscibility, crosslinking reactions.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 2025; 49(6): 810-817

    Published online Nov 25, 2025

  • 10.7317/pk.2025.49.6.810
  • Received on Jun 20, 2025
  • Revised on Aug 21, 2025
  • Accepted on Aug 26, 2025

Correspondence to

  • Younggon Son
  • Advanced Materials Science and Engineering, College of Engineering, Kongju National University, Cheonan, Chungnam 31080, Korea

  • E-mail: sonyg@kongju.ac.kr