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Characterization of siloxane residues from polydimethylsiloxane elastomers by MALDI‐TOF‐MS
Author(s) -
Hunt Susan M,
George Graeme A
Publication year - 2000
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/1097-0126(200007)49:7<633::aid-pi528>3.0.co;2-r
Subject(s) - polydimethylsiloxane , siloxane , elastomer , vulcanization , materials science , polymer chemistry , molar mass distribution , polymer science , characterization (materials science) , chemical engineering , polymer , composite material , nanotechnology , natural rubber , engineering
The hydophobic recovery properties of polydimethylsiloxane (PDMS) elastomers after environmental degradation arises from the migration of low molecular weight siloxanes from the bulk to the surface. MALDI‐TOF‐MS analysis of the isotopic distribution of oligomers from the surface of vulcanized PDMS has enabled unambiguous assignment of these as predominantly cyclic siloxanes ranging from 13 to 47 repeat units with smaller proportions of methyl and hydroxyl terminated linear chains ranging from 12 to 24 repeat units. © 2000 Society of Chemical Industry.