Bottleneck for reactive molar mass in the polymerization of propylene oxide initiated with potassium t-butoxide
The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the C==C double bond was found...
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| Published in | Journal of applied polymer science Vol. 113; no. 6; pp. 3656 - 3660 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
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| Abstract | The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the C==C double bond was found to exist by NMR. In situ Fourier transform infrared spectroscopy was used to monitor the whole polymerization process until the absorbance reached a constant value and the system reached equilibrium. However, propylene oxide still existed in the system, and alkoxide was detected in the reaction system by ²³Na-NMR. On the basis of these results, we deduced that the residual alkoxide was not active enough to initiate propylene oxide polymerization in the near end of the polymerization. Therefore, there might have been another factor that limited the increase of the relative molar mass of poly(propylene oxide) in addition to chain transfer. |
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| AbstractList | The anionic polymerization of propylene oxide was investigated with potassium t‐butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the CC double bond was found to exist by NMR. In situ Fourier transform infrared spectroscopy was used to monitor the whole polymerization process until the absorbance reached a constant value and the system reached equilibrium. However, propylene oxide still existed in the system, and alkoxide was detected in the reaction system by 23Na‐NMR. On the basis of these results, we deduced that the residual alkoxide was not active enough to initiate propylene oxide polymerization in the near end of the polymerization. Therefore, there might have been another factor that limited the increase of the relative molar mass of poly(propylene oxide) in addition to chain transfer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the C==C double bond was found to exist by NMR. In situ Fourier transform infrared spectroscopy was used to monitor the whole polymerization process until the absorbance reached a constant value and the system reached equilibrium. However, propylene oxide still existed in the system, and alkoxide was detected in the reaction system by ²³Na-NMR. On the basis of these results, we deduced that the residual alkoxide was not active enough to initiate propylene oxide polymerization in the near end of the polymerization. Therefore, there might have been another factor that limited the increase of the relative molar mass of poly(propylene oxide) in addition to chain transfer. The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the CC double bond was found to exist by NMR. In situ Fourier transform infrared spectroscopy was used to monitor the whole polymerization process until the absorbance reached a constant value and the system reached equilibrium. However, propylene oxide still existed in the system, and alkoxide was detected in the reaction system by 23Na-NMR. On the basis of these results, we deduced that the residual alkoxide was not active enough to initiate propylene oxide polymerization in the near end of the polymerization. Therefore, there might have been another factor that limited the increase of the relative molar mass of poly(propylene oxide) in addition to chain transfer. [copy 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 The anionic polymerization of propylene oxide was investigated with potassium t ‐butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was used in controlling experiments. The relative molar mass limit of the products was determined as about 2700, and the CC double bond was found to exist by NMR. In situ Fourier transform infrared spectroscopy was used to monitor the whole polymerization process until the absorbance reached a constant value and the system reached equilibrium. However, propylene oxide still existed in the system, and alkoxide was detected in the reaction system by 23 Na‐NMR. On the basis of these results, we deduced that the residual alkoxide was not active enough to initiate propylene oxide polymerization in the near end of the polymerization. Therefore, there might have been another factor that limited the increase of the relative molar mass of poly(propylene oxide) in addition to chain transfer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 |
| Author | Li, Tianduo Yu, Yanhong Xia, Yong mei Yang, Pengfei Zhu, Xuwei |
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| Keywords | Ring opening polymerization Priming activity Experimental study Solution polymerization molecular weight distribution/molar mass distribution NMR polyethers Cyclic ether polymer Propylene oxide polymer FTIR Anionic catalyst Alkoxide Anionic polymerization Kinetics |
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| References | Price, C. C., Akkapeddi, M. K., DeBona, B. T. et al. J Am Chem Soc 1972, 94, 3964. Doroshenko, N. P., Spirin, Yu. L. Polymer Science USSR 1970, 12, 2812. Morejko, B., Stolarzewicz, A., Grobelny, Z. et al. React Funct Polym 2007, 67, 669. Price, C. C., Carmelite, D. D. J Am Chem Soc 1966, 88, 4039. Yu, G., Masters, A. J., Heatley, F. et al. Macromol Chem Phys 1994, 195, 1517. Cendejas, G., Flores-Sandoval, C. A., Huitron, N. et al. J Mol Struct 2008, 879, 40. Simons, D. M., Verbanee, J. J. J Polym Sci 1960, 44, 303. Ding, J., Price, C., Booth, C. Eur Polym J 1991, 27, 891. Zhang, Y., Wang, D., Wurst, K. et al. Des Monomers Polym 2005, 8, 571. Stolarzewicz, A., Morejko-Buz, B., Grobelny, Z. et al. Polymer 2004, 45, 7047. Malcolm, H. C., Diana, N. Macromolecules 2002, 35, 2389. Yu, G., Heatley, F., Booth, C. et al. J Polym Sci Part A: Polym Chem 1994, 32, 1131. Price, C. C. Acc Chem Res 1974, 7, 294. Gee, G., Higginson, W. C. E., Taylor, K. J. et al. J Chem Soc 1961, 4298. 1991; 27 1960; 44 2005; 8 2002; 35 2004; 45 1994; 195 1970; 12 2008; 879 1972; 94 1961 1974; 7 2007; 67 1966; 88 1994; 32 e_1_2_6_8_2 e_1_2_6_7_2 e_1_2_6_9_2 e_1_2_6_4_2 e_1_2_6_3_2 e_1_2_6_6_2 e_1_2_6_5_2 e_1_2_6_12_2 e_1_2_6_13_2 e_1_2_6_2_2 e_1_2_6_10_2 e_1_2_6_11_2 e_1_2_6_14_2 e_1_2_6_15_2 |
| References_xml | – reference: Ding, J., Price, C., Booth, C. Eur Polym J 1991, 27, 891. – reference: Stolarzewicz, A., Morejko-Buz, B., Grobelny, Z. et al. Polymer 2004, 45, 7047. – reference: Morejko, B., Stolarzewicz, A., Grobelny, Z. et al. React Funct Polym 2007, 67, 669. – reference: Simons, D. M., Verbanee, J. J. J Polym Sci 1960, 44, 303. – reference: Price, C. C., Carmelite, D. D. J Am Chem Soc 1966, 88, 4039. – reference: Malcolm, H. C., Diana, N. Macromolecules 2002, 35, 2389. – reference: Yu, G., Heatley, F., Booth, C. et al. J Polym Sci Part A: Polym Chem 1994, 32, 1131. – reference: Cendejas, G., Flores-Sandoval, C. A., Huitron, N. et al. J Mol Struct 2008, 879, 40. – reference: Price, C. C., Akkapeddi, M. K., DeBona, B. T. et al. J Am Chem Soc 1972, 94, 3964. – reference: Gee, G., Higginson, W. C. E., Taylor, K. J. et al. J Chem Soc 1961, 4298. – reference: Zhang, Y., Wang, D., Wurst, K. et al. Des Monomers Polym 2005, 8, 571. – reference: Price, C. C. Acc Chem Res 1974, 7, 294. – reference: Doroshenko, N. P., Spirin, Yu. L. Polymer Science USSR 1970, 12, 2812. – reference: Yu, G., Masters, A. J., Heatley, F. et al. Macromol Chem Phys 1994, 195, 1517. – volume: 67 start-page: 669 year: 2007 publication-title: React Funct Polym – volume: 45 start-page: 7047 year: 2004 publication-title: Polymer – volume: 44 start-page: 303 year: 1960 publication-title: J Polym Sci – volume: 7 start-page: 294 year: 1974 publication-title: Acc Chem Res – volume: 32 start-page: 1131 year: 1994 publication-title: J Polym Sci Part A: Polym Chem – volume: 195 start-page: 1517 year: 1994 publication-title: Macromol Chem Phys – volume: 12 start-page: 2812 year: 1970 publication-title: Polymer Science USSR – volume: 8 start-page: 571 year: 2005 publication-title: Des Monomers Polym – volume: 879 start-page: 40 year: 2008 publication-title: J Mol Struct – volume: 27 start-page: 891 year: 1991 publication-title: Eur Polym J – volume: 35 start-page: 2389 year: 2002 publication-title: Macromolecules – volume: 88 start-page: 4039 year: 1966 publication-title: J Am Chem Soc – start-page: 4298 year: 1961 publication-title: J Chem Soc – volume: 94 start-page: 3964 year: 1972 publication-title: J Am Chem Soc – ident: e_1_2_6_7_2 doi: 10.1163/156855505774597722 – ident: e_1_2_6_2_2 doi: 10.1021/ar50081a003 – ident: e_1_2_6_4_2 doi: 10.1016/0032-3950(70)90425-9 – ident: e_1_2_6_5_2 doi: 10.1002/pola.1994.080320615 – ident: e_1_2_6_8_2 doi: 10.1016/j.molstruc.2007.08.023 – ident: e_1_2_6_12_2 doi: 10.1021/ja00766a052 – ident: e_1_2_6_10_2 doi: 10.1016/0014-3057(91)90028-M – ident: e_1_2_6_3_2 doi: 10.1016/j.reactfunctpolym.2007.04.006 – ident: e_1_2_6_9_2 doi: 10.1016/j.polymer.2004.07.073 – ident: e_1_2_6_13_2 doi: 10.1002/pol.1960.1204414403 – ident: e_1_2_6_14_2 doi: 10.1039/jr9610004298 – ident: e_1_2_6_11_2 doi: 10.1021/ma0119934 – ident: e_1_2_6_15_2 doi: 10.1021/ja00969a026 – ident: e_1_2_6_6_2 doi: 10.1002/macp.1994.021950506 |
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| Snippet | The anionic polymerization of propylene oxide was investigated with potassium t-butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was... The anionic polymerization of propylene oxide was investigated with potassium t‐butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was... The anionic polymerization of propylene oxide was investigated with potassium t ‐butoxide as an initiator, and the solvent hexamethyl phosphoric triamide was... |
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| SubjectTerms | Alkoxides anionic polymerization Applied sciences Chain transfer Exact sciences and technology Fourier transforms FTIR Infrared spectroscopy molecular weight distribution/molar mass distribution NMR Organic polymers Oxides Physicochemistry of polymers polyethers Polymerization Potassium Preparation, kinetics, thermodynamics, mechanism and catalysts Propylene oxide |
| Title | Bottleneck for reactive molar mass in the polymerization of propylene oxide initiated with potassium t-butoxide |
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