Use this URL to cite or link to this record in EThOS:
Title: Morphology and damping properties of triblock copolymer physical gels
Author: Matsuse, Takahiro
ISNI:       0000 0001 3621 3524
Awarding Body: Loughborough University
Current Institution: Loughborough University
Date of Award: 2002
Availability of Full Text:
Access from EThOS:
Access from Institution:
This study was conducted in order to develop damping materials for practical applications, such as insulators for compact disk players and hard drive disks. Three types of styrene-based triblock copolymers and various paraffinic oils were selected to produce physical gels with low modulus. These polymer gels can be shaped by injection moulding to reduce the total cost for mass production. The miscibility and the morphology of the systems were examined by modulated-temperature differential scanning calorimetry (M-TDSC), dynamic mechanical thermal analysis (DMTA), transmission electron microscopy (IEM) and small angle X-ray scattering (SAXS). The experimental results showed that the glass transition temperatures of the mid blocks of the block copolymers swollen with the high Mw paraffinic oils obeyed the Fox equation. This means that the added paraffinic oil is selectively miscible with the mid blocks. However, it was also found by TEM that the polystyrene domains were also swollen by the low Mw paraffinic oil.
Supervisor: Not available Sponsor: Bridgestone Corporation
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Elastomers