Influence of ECR-RF plasma modification on surface and thermal properties of polyester copolymer

In this paper we report a study on influence of radio-frequency (RF) plasma induced with electron cyclotron resonance (ECR) on multiblock copolymer containing butylene terephthalate hard segments (PBT) and butylene dilinoleate (BDLA) soft segments. The changes in thermal properties were studied by D...

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Published in:Polish journal of chemical technology 2015-12, Vol.17 (4), p.115-119
Main Authors: Fray, Miroslawa El, Willert-Porada, Monika
Format: Article
Language:English
Subjects:
copolymers
differential scanning calorimetry
fatty acid
scanning electron microscopy
water contact angle
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Willert-Porada, Monika
description In this paper we report a study on influence of radio-frequency (RF) plasma induced with electron cyclotron resonance (ECR) on multiblock copolymer containing butylene terephthalate hard segments (PBT) and butylene dilinoleate (BDLA) soft segments. The changes in thermal properties were studied by DSC. The changes in wettability of PBT-BDLA surfaces were studied by water contact angle (WCA). We found that ECR-RF plasma surface treatment for 60 s led to decrease of WCA, while prolonged exposure of plasma led to increase of WCA after N and N treatment up to 70°–80°. The O reduced the WCA to 50°–56°. IR measurements confirmed that the N plasma led to formation of polar groups. SEM investigations showed that plasma treatment led to minor surfaces changes. Collectively, plasma treatment, especially O , induced surface hydrophilicity what could be beneficial for increased cell adhesion in future biomedical applications of these materials.
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subjects copolymers
differential scanning calorimetry
fatty acid
scanning electron microscopy
water contact angle
title Influence of ECR-RF plasma modification on surface and thermal properties of polyester copolymer
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