期刊
ACS MACRO LETTERS
卷 6, 期 2, 页码 185-189出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.7b00038
关键词
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资金
- National Science Foundation [DMR-1606410]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1606410] Funding Source: National Science Foundation
An initiator- and catalyst-free method for polymer end-group modification has been designed. Under long-wave ultraviolet irradiation, polymers with thiocarbonylthio end groups undergo photolytic cleavage to reveal an active macroradical capable of irreversible termination with a suitable hydrogen source. This straightforward method was successfully demonstrated by the removal of a range of end groups that commonly result from reversible addition-fragmentation chain transfer or photoiniferter polymerizations, including trithiocarbonate, dithiobenzoate, xanthate, and dithiocarbamate mediating agents. This strategy proved efficient for polymers derived from acrylamido, acrylic, methacrylic, styrenic, and vinylpyrrolidone monomers.
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