Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 102, 2014

Modification of the core–shell ratio to prepare PB-g-(MMA-co-St-co-GMA) particle-toughened poly(butylene terephthalate) and polycarbonate blends with balanced stiffness and toughness

Author affiliations

Abstract

Reactive polybutadiene-g-(methyl methacrylate-co-styrene-co-glycidyl methacrylate) particles with different core–shell ratios were prepared using a seeded emulsion polymerization method. The influence of the core–shell ratio on the toughness and stiffness of poly(butylene terephthalate) (PBT) and polycarbonate (PC) blends was investigated. A low core–shell ratio induced a higher grafting degree and ‘internal grafting’ which were useful for keeping the blend stiffness. A high core–shell ratio improved the soft rubber content and was beneficial for improvement of toughness. The optimum grafting degree region was 56–187% for the reactive core–shell (RCS) particles, in order to achieve good dispersion. The RCS-28 and RCS-37 particles were efficient at keeping a higher stiffness but lower toughening effect for PBT/PC blends due to their poor cavitation ability. RCS-73-toughened blends showed weak impact and yield strength due to their agglomeration morphology and high rubber phase content. In the present paper, PBT/PC/RCS-46 blends showed a better toughness and stiffness balance. When the RCS-46 content was 15%, an impact strength of 950 J m−1 and a yield strength of 50 MPa could be achieved for the PBT/PC/RCS-46 blend.

Graphical abstract: Modification of the core–shell ratio to prepare PB-g-(MMA-co-St-co-GMA) particle-toughened poly(butylene terephthalate) and polycarbonate blends with balanced stiffness and toughness

Article information


Submitted
14 Aug 2014
Accepted
21 Oct 2014
First published
22 Oct 2014

RSC Adv., 2014,4, 58880-58887
Article type
Paper
Author version available

Modification of the core–shell ratio to prepare PB-g-(MMA-co-St-co-GMA) particle-toughened poly(butylene terephthalate) and polycarbonate blends with balanced stiffness and toughness

Y. Guo, S. Sun and H. Zhang, RSC Adv., 2014, 4, 58880 DOI: 10.1039/C4RA08646E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements