Table 3.
Thermoresponsive property of PMOEAm-s-PDMAm and PMOEAm-s-PEOEAm prepared by the random hydrosilylation-promoted GTcoPs of MOEAm and DMAm or EOEAm with Me2EtSiH using B(C6F5)3 as the catalyst, respectively. a.
| Run | Polymer | [MOEAm + DMAm or EOEAm]0/[Me2EtSiH]0 |
Mn,calcd kg mol−1 |
Mn,SEC (Đ) b kg mol−1 |
Tcp c °C |
|---|---|---|---|---|---|
| 21 | PMOEAm30-s-PDMAm70 | (30 + 70)/1 | 12.5 | 12.5 (1.09) | - d |
| 22 | PMOEAm40-s-PDMAm60 | (40 + 60)/1 | 13.4 | 13.6 (1.12) | 73.4 |
| 23 | PMOEAm50-s-PDMAm50 | (50 + 50)/1 | 14.3 | 14.5 (1.14) | 72.1 |
| 24 | PMOEAm60-s-PDMAm40 | (60 + 40)/1 | 15.2 | 15.3 (1.11) | 67.5 |
| 25 | PMOEAm70-s-PDMAm30 | (70 + 30)/1 | 16.1 | 16.4 (1.15) | 64.2 |
| 26 | PMOEAm80-s-PDMAm20 | (80 + 20)/1 | 16.9 | 16.6 (1.07) | 59.3 |
| 27 | PMOEAm90-s-PDMAm10 | (90 + 10)/1 | 17.8 | 17.7 (1.11) | 55.5 |
| 28 | PMOEAm30-s-PEOEAm70 | (30 + 70)/1 | 20.7 | 20.9 (1.15) | - e |
| 29 | PMOEAm40-s-PEOEAm60 | (40 + 60)/1 | 20.4 | 20.6 (1.14) | - e |
| 30 | PMOEAm50-s-PEOEAm50 | (50 + 50)/1 | 20.1 | 20.5 (1.13) | 46.2 |
| 31 | PMOEAm60-s-PEOEAm40 | (60 + 40)/1 | 19.8 | 19.3 (1.09) | 45.3 |
| 32 | PMOEAm70-s-PEOEAm30 | (70 + 30)/1 | 19.6 | 19.0 (1.10) | 42.4 |
| 33 | PMOEAm80-s-PEOEAm20 | (80 + 20)/1 | 19.3 | 18.9 (1.12) | 37.0 |
| 34 | PMOEAm90-s-PEOEAm10 | (90 + 10)/1 | 19.0 | 18.6 (1.12) | 33.7 |
a Solvent, CH2Cl2; [MOEAm + DMAm or EOEAm]0, 1.0 mol L−1; [Me2EtSiH]0/[B(C6F5)3]0, 1; temp., 25 °C; time, 24 h; Ar atmosphere; monomer conversion determined by 1H NMR spectra in CDCl3, >99.9%. b The molecular mass of the polymers was determined using size exclusion chromatography equipped with a refractive index detector in dimethylformamide (DMF) containing 0.01 mol L−1 of lithium chloride and using polymethylmethacrylate (PMMA) as standards.c Determined by UV–vis measurements in water (10 g L−1). d Water-soluble but no Tcp under 95 °C. e Not determined due to insoluble in water.