PDMSMA(57) macromonomer even at a 1:1 molar ratio; however, the statistical copolymers p(PDMSMA(9)48-stat-OEGMA12), p(PDMSMA(9)30-stat-OEGMA30), and were all recovered with low Ð values p(PDMSMA(57)30-stat-OEGMA30) (1.08 1.21) and molecular weights ranging from Mn = 33,300 350,600 gmol-1. When – – employing PDMSMA(9) both monomers appeared to be incorporated into the polymers well, however, the polymers derived from PDMSMA(57) were richer in OEGMA than targeted. Table 1 Characterization of the synthesized study copolymers. GPCa (THF) 1H NMRb Target Polymer Brancher Mn Mw Polymer Conversion(%) Ð Composition (gmol-1) (gmol-1) Composition PDMS OEGMA - 24,800 30,400 1.23 - 92 p(OEGMA60) p(OEGMA55) - 51,200 59,400 1.16 96 - p(PDMSMA(9)60) p(PDMSMA(9)58) - 376,000 439,900 1.17 38 - p(PDMSMA(57)60) p(PDMSMA(57)23) - 47,650 52,700 1.11 98 94 - 33,300 36,800 1.11 80 96 - 350,600 380,200 1.08 45 77 - 220,250 266,850 1.21 47 65 PDMS- 56,200 74,200 1.32 - 94 98 DMA(12)0.95 PDMS- 50,700 75,600 1.49 - 91 97 DMA(12)0.95 PDMS- 423,900 3,590,000 8.47 - 91 98 DMA(55)0.95 PDMS- 142,100 5,220,000 36.73 - 90 97 DMA(55)0.95 - 149,700 199,300 1.33 78 92 - 95,400 108,600 1.14 77 95 PDMS- 174,100 389,900 2.24 - 92 89 DMA(55)0.95
PDMSMA(57) macromonomer even at a 1:1 molar ratio; however, the statistical copolymers p(PDMSMA(9)48-stat-OEGMA12), p(PDMSMA(9)30-stat-OEGMA30), and p(PDMSMA(57)30-stat-OEGMA30) were all recovered with low Ð values (1.08 – 1.21) and molecular weights ranging from Mn = 33,300 – 350,600 gmol-1. When employing PDMSMA(9) both monomers appeared to be incorporated into the polymers well, however, the polymers derived from PDMSMA(57) were richer in OEGMA than targeted. Table 1 Characterization of the synthesized study copolymers. Brancher GPCa (THF) 1H NMRb Target Polymer Mn (gmol-1) Mw (gmol-1) Ð Polymer Conversion(%) Composition Composition PDMS OEGMA p(OEGMA60) - 24,800 30,400 1.23 p(OEGMA55) - 92 p(PDMSMA(9)60) - 51,200 59,400 1.16 p(PDMSMA(9)58) 96 - p(PDMSMA(57)60) - 376,000 439,900 1.17 p(PDMSMA(57)23) 38 - - 47,650 52,700 1.11 98 94 - 33,300 36,800 1.11 80 96 - 350,600 380,200 1.08 45 77 - 220,250 266,850 1.21 47 65 PDMS- DMA(12)0.95 56,200 74,200 1.32 - 94 98 PDMS- DMA(12)0.95 50,700 75,600 1.49 - 91 97 PDMS- DMA(55)0.95 423,900 3,590,000 8.47 - 91 98 PDMS- DMA(55)0.95 142,100 5,220,000 36.73 - 90 97 - 149,700 199,300 1.33 78 92 - 95,400 108,600 1.14 77 95 PDMS- DMA(55)0.95 174,100 389,900 2.24 - 92 89
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