Main-chain functionalization of poly(l-lactide) with pendant unsaturations
2012 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 50, no 15, 3039-3045 p.Article in journal (Refereed) Published
Main-chain-functionalized poly(L-lactide) (PLLA) with pendant unsaturations was synthesized through a one-pot postpolymerization procedure with the PLLA homopolymer as the starting material. The material was functionalized through a-hydrogen abstraction by a sterically hindered strong base, lithium diisopropylamide, followed by the addition of an acid chloride. Two different acid chlorides were examined, lauroyl chloride as a concept electrophile and oleoyl chloride to provide the pendant unsaturations. The semisolvated system, together with branching reactions from the alpha position of the acid chloride, yielded a high molar amount of the incorporated reactant in the material. The unsaturations were preserved under the chosen conditions and the material exhibited surfactant-like properties in blends with oleic acid and PLLA.
Place, publisher, year, edition, pages
2012. Vol. 50, no 15, 3039-3045 p.
branched, graft copolymer, LDA, polyester, postpolymerization modification
IdentifiersURN: urn:nbn:se:kth:diva-93838DOI: 10.1002/pola.26084ISI: 000305572900007ScopusID: 2-s2.0-84862728554OAI: oai:DiVA.org:kth-93838DiVA: diva2:524242
QC 201207272012-04-302012-04-302012-07-27Bibliographically approved