Influences of Hyperbranched Polyethylenimine on the Reactive Compatibilization of Polycarbonate/Polyamide Blends

Ming-ji Wang; Guang-cui Yuan; Charles C. Han

doi:10.1007/s10118-014-1475-0

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Influences of Hyperbranched Polyethylenimine on the Reactive Compatibilization of Polycarbonate/Polyamide Blends

PAPER | Updated：2021-06-21

- Influences of Hyperbranched Polyethylenimine on the Reactive Compatibilization of Polycarbonate/Polyamide Blends
- Chinese Journal of Polymer Science Vol. 33, Issue 4, Pages: 652-660(2015)
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics & Chemistry, Joint Laboratory of Polymer Science & Materials, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  b.Institute of Phenolic Resin, Jinan Shengquan Group Co., Ltd., Ji'nan 250204, China
- Author bio：
  
  **Guang-cui Yuan (袁光萃), E-mail: gcyuan@iccas.ac.cn
  Charles C. Han (韩志超), E-mail: c.c.han@iccas.ac.cn
- Funds：
- DOI：10.1007/s10118-014-1475-0
  CLC：
- Received：15 August 2014，
  
  Accepted：12 September 2014，
  
  Published：2015-04
- Accepted：
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Ming-ji Wang, Guang-cui Yuan, Charles C. Han. Influences of Hyperbranched Polyethylenimine on the Reactive Compatibilization of Polycarbonate/Polyamide Blends[J]. Chinese Journal of Polymer Science, 2015, 33(4): 652-660.
DOI：

Ming-ji Wang, Guang-cui Yuan, Charles C. Han. Influences of Hyperbranched Polyethylenimine on the Reactive Compatibilization of Polycarbonate/Polyamide Blends[J]. Chinese Journal of Polymer Science, 2015, 33(4): 652-660. DOI： 10.1007/s10118-014-1475-0.

摘要

Abstract

The influences of hyperbranched polyethylenimine (hPEI)

which possesses many reactive amino end-groups

on the blending properties of bisphenol-A polycarbonate (PC) and amorphous polyamide (aPA) were systematically investigated. Scanning electron microscopy (SEM) and differential scanning calorimetry (DSC) were used to observe the effect of hPEI on morphologies of PC and aPA phases in bulk blends. While the interfacial fracture toughness between planar PC and aPA layers with and without hPEI was studied by using augmented double cantilever beam (ADCB) method. Results show that the compatibility in PC/aPA blends can be significantly improved by adding a small amount of hPEI

mainly due to the interchange reactions between the polymers leading to the formation of block copolymers

cross-linked polymers and molecules with other constitutions. The augmented double cantilever beam experiments showed that the reactive process drastically reinforced the interfacial adhesion between planar layers of PC and aPA. However

degradation takes place during annealing at 180℃

which was responsible for the production of small molar mass species of PC.

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