Fragmentation pathways of methacrylic homopolymers with labile trialkylsilyl ester side-groups—A mass spectrometric investigation of the RAFT process
Fragmentation pathways of methacrylic polymers containing labile silyl ester pendant
groups were characterized upon collisional activation of electrosprayed oligomer adducts.
Dissociation of lithiated oligomers mainly generated low mass product ions containing the α
end-group and arising from backbone bond homolytic cleavages, as typically observed for
poly (alkylmethacrylate) s. Combined with the sum of the end-group masses as determined
from MS data, this main reaction allowed both end-groups to be validated. In contrast, loss of …
groups were characterized upon collisional activation of electrosprayed oligomer adducts.
Dissociation of lithiated oligomers mainly generated low mass product ions containing the α
end-group and arising from backbone bond homolytic cleavages, as typically observed for
poly (alkylmethacrylate) s. Combined with the sum of the end-group masses as determined
from MS data, this main reaction allowed both end-groups to be validated. In contrast, loss of …
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