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Surface glass transition temperature of amorphous polymers. A new insight with SFM

Abstract:

The surface glass transition temperature, Tg, of several amorphous polystyrene (PS) samples each with a narrow molecular weight distribution covering the range of Mn from 3 900 to 1 340 000 has been measured by force-distance measurements using a scanning force microscope (SFM). Hysteresis in the loading-unloading cycles of the force-distance curves is observed above Tg and is ascribed to viscoelasticity at the polymer surface. The hysteresis behavior for different molecular weight samples ab...

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Publication status:
Published

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Publisher copy:
10.1021/ma011326a

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
Journal:
MACROMOLECULES
Volume:
35
Issue:
17
Pages:
6613-6622
Publication date:
2002-08-13
DOI:
EISSN:
1520-5835
ISSN:
0024-9297
URN:
uuid:97a1814a-7b42-43ec-a8c8-cbb380109745
Source identifiers:
18882
Local pid:
pubs:18882
Language:
English

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