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MALDI‐TOF MS characterization of dihydroxy telechelic polyisobutylene
Author(s) -
Kéki Sándor,
Deák György,
MayerPosner Franz J.,
Zsuga Miklós
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20000701)21:11<770::aid-marc770>3.0.co;2-w
Subject(s) - isobutylene , telechelic polymer , cationic polymerization , monomer , polymer chemistry , polymer , yield (engineering) , polymerization , chemistry , end group , materials science , copolymer , organic chemistry , metallurgy
MALDI‐TOF MS characterizations of dihydroxy telechelic polyisobutylene is reported. Dichloro telechelic polyisobutylene (Cl—PIB—Cl) was synthesized by means of living cationic polymerization using p‐dicumyl chloride/BCl 3 /DMSO initiating systems. The resulting polymer was functionalized by polymer analogous reactions to yield dihydroxy telechelic polyisobutylene (HO—PIB—OH). It was then investigated by MALDI‐TOF MS in the cation mode using 1,8‐dihidroxy‐9(10 H )‐anthracenone (dithranol)/CF 3 COOAg matrix. The MALDI TOF MS spectra showed an increase in mass by 56 amu units attributed to the isobutylene monomer increment. The endgroups of HO—PIB—OH were determined. A good agreement was also found between the calculated isotope distributions and the isotope distributions determined by means of MALDI.