We report a metal-mediated sequential addition synthetic route for copolymerization of lactide (or e-caprolactone) and methyl methacrylate. We synthesized a series of neutral and cationic indium complexes supported by tridentate Schiff base ligands and investigated their reactivities for the homo- and copolymerization of lactide or e-caprolactone and methyl methacrylate. We showed that the neutral indium complex (±)-(NNiOtBu)In(CH2SiMe3)2 (2) catalyzes the sequential block-copolymerization of lactide / e-caprolactone and methyl methacrylate without any additional reagents or synthetic steps. The block copolymers were stringently characterized by size exclusion chromatography (SEC), diffusion ordered NMR spectroscopy (DOSY), differential scanning calorimetry (DSC), and fractional precipitation techniques.
Publications
(59) Phys. Fluids 2021, 33, 043102
(58) Phys. Fluids 2021, 33, 032010
(57) Polym. Chem. 2021, 12, 783 - 806
(56) Catal. Sci. Technol. 2021, 11, 2119–2129
(55) Catal. Sci. Technol. 2021, 11, 62-91
(54) ACS Appl. Mater. Interfaces 2020, 12, 52182−52191
(53) Macromolecules 2020, 53(20), 8819-8828
(52) ACS Catal. 2020, 10, 6488−6496
(51) Chem. Sci. 2020, 11, 6485−6491
(50) Inorg. Chem. 2020, 59, 5546−5557
(49) Chem. Commun. 2019, 55, 3347-3350
(48) Coord. Chem. Rev. 2019 380, 35–57
(47) ChemCatChem 2018, 10, 3219 – 3222
(46) ACS Sustainable Chem. Eng., 2018, 6, 1650–1661
(45) Acc. Chem. Res. 2017, 50, 2861−2869
(44) J. Rheol. 2017 61(6), 1137-1148
(43) ACS Catal. 2017, 7, 6413−6418
(42) Dalton Trans. 2017 46, 6723–6733
(41) Macromolecules 2017 50 (6), 2535–2546
(40) Inorg. Chem. 2017 56 (3), 1375–1385
(39) Macromolecules 2016 49 (23), 8812–8824
(38) Inorg. Chem. 2016, 55(18), 9445–9453
(37) Inorg. Chem. 2016, 55(11), 5365–5374
(36) Macromolecules 2016, 49(3), 909–919
(35) Macromolecules 2015, 48(18), 6672-6681
(34) Chem. Sci., 2015, 6, 5284–5292
(33) Dalton Trans. 2015, 44, 14248 - 14254
(32) Dalton Trans. 2015, 44, 6126 - 6139
(31) Inorg. Chem. 2014, 53(18), 9897−9906
(30) J. Am. Chem. Soc. 2014, 136(32), 11264–11267
(29) Inorg. Chem. 2014, 53(13), 6828–6836
(28) Organometallics 2013, 32(23), 6950–6956
(27) Macromolecules 2013, 46, 3965−3974
(26) Chem. Commun. 2013, 49, 4295-4297
(25) J. Am. Chem. Soc. 2012, 134(30), 12758–12773
(24) Chem. Commun. 2012, 48(54), 6806-6808
(23) Polymer 2012, 53(12), 2443-2452
(22) Dalton Trans. 2012, 41(26), 8123-8134.
(21) Rheol. Acta 2012, 51(4), 357-369
(20) J. Am. Chem. Soc. 2011, 133(24), 9278–9281
(19) J. Rheol. 2011, 55(5), 987-1004
(18) Organometallics 2010, 29(22), 6065–6076
(17) Inorg. Chem. 2010, 49(12), 5444–5452
(16) Dalton Trans. 2010, 39(2), 541–547
(15) J. Supercrit. Fluids 2010, 51(3), 376-383
(14) Organometallics 2009, 28(21), 6370–6373
(13) Organometallics 2009, 28(13), 3889–3895
(12) Organometallics, 2009, 28(5), 1309-1319
(11) Angew. Chem. Int. Ed. 2008, 47(12), 2290-2293