Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
Xiao-hong Li (李晓虹), E-mail:lxh83@suda.edu.cn
Ying-feng Tu (屠迎锋), E-mail:tuyingfeng@suda.edu.cn
收稿:2016-11-03,
修回:2016-11-29,
录用:2016-11-29,
纸质出版:2017-05
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Dong-xue Chen, Ling-feng Gao, Xiao-hong Li, 等. Precise Molecular Weight Determination and Structure Characterization of End-functionalized Polymers: An NMR Approach
Dong-xue Chen, Ling-feng Gao, Xiao-hong Li, et al. Precise Molecular Weight Determination and Structure Characterization of End-functionalized Polymers: An NMR Approach
Dong-xue Chen, Ling-feng Gao, Xiao-hong Li, 等. Precise Molecular Weight Determination and Structure Characterization of End-functionalized Polymers: An NMR Approach
Dong-xue Chen, Ling-feng Gao, Xiao-hong Li, et al. Precise Molecular Weight Determination and Structure Characterization of End-functionalized Polymers: An NMR Approach
We present here the application of one-dimensional and two-dimensional NMR techniques to characterize the structure of methoxyl end-functionalized polystyrenes (PS). The peaks in
1
H-NMR spectra corresponding to main-chain
side-chain and chain-end groups are assigned by
1
H-
1
H gCOSY
1
H-
13
C gHSQC and gHMBC spectra. For the first time
the spin-lattice relaxation time (
T
1
) of protons of the chain-ends is revealed to be affected more by polymer molecular weight (MW) than by the protons of the main-chains and the side-chains (almost independent from MW). As a result
a much higher delay time (
d
1) for chain-ends (
d
1
>
20
T
1
) is needed for quantitative NMR measurement when using end-group estimation method to obtain the MW of PS
which is in accordance with the value estimated by GPC. An improved method for the polymer MW determination is established
by combination of different NMR techniques to distinguish the peaks
and a large
d
1 setting to achieve quantitative NMR analysis.
Rinaldi, P. L. , "NMR spectroscopy of polymers in solution and in the solid state, Vol. 834", ed. by Cheng H. N. , English A. D. , ACS Symposium Series, American Chemical Society, Washington DC, 2002, P. 94
Hatada, K. and Kitayama, T., "NMR spectroscopy of polymers", Springer, New York, 2004
A. Piserchia , M. Zerbetto , M.V. Salvia , G. Salassa , L. Gabrielli , F. Mancin , F. Rastrelli , D.J. Frezzato . . Phys. Chem. , 2015 . 119 ( 34 ): 20100 .
L. Li , B. Zhang , F. Wyzgoski , X. Li , E.F. McCord , P.L. Rinaldi . . ACS Macro Lett. , 2013 . 2 ( 2 ): 141 DOI: 10.1021/mz300599u http://doi.org/10.1021/mz300599u .
K. Tanaka , M. Oouchi , F. Hayashi , H. Maeda , H. Waki . . Macromolecules , 2016 . 49 ( 15 ): 5750 DOI: 10.1021/acs.macromol.6b01105 http://doi.org/10.1021/acs.macromol.6b01105 .
X. Luo , S. Xie , W. Huang , B. Dai , B. Lu , D. Yan . . Chinese J. Polym. Sci. , 2016 . 34 ( 1 ): 77 DOI: 10.1007/s10118-016-1730-7 http://doi.org/10.1007/s10118-016-1730-7 .
L. Li , C. Xiong , D. Chen . . Chinese J. Polym. Sci. , 2016 . 34 ( 5 ): 594 DOI: 10.1007/s10118-016-1777-5 http://doi.org/10.1007/s10118-016-1777-5 .
X. Li , E.F. McCord , S. Baiagern , P. Fox , J.L. Howell , S.K. Sahoo , P.L. Rinaldi . . Magn. Reson. Chem. , 2011 . 49 ( 7 ): 413 DOI: 10.1002/mrc.v49.7 http://doi.org/10.1002/mrc.v49.7 .
X. Gong , E.W. Hansen , Q. Chen . . Macromol. Chem. Phys. , 2011 . 212 ( 10 ): 1007 DOI: 10.1002/macp.v212.10 http://doi.org/10.1002/macp.v212.10 .
Y. Ye , X. Liu , G. Xu , M. Liu , C. Li . . Angew. Chem. Int. Ed. , 2015 . 54 ( 18 ): 5328 DOI: 10.1002/anie.201500261 http://doi.org/10.1002/anie.201500261 .
K. Hatada , T. Kitayama , K. Ute , Y. Terawaki , T. Yanagida . . Macromolecules , 1997 . 30 ( 22 ): 6754 DOI: 10.1021/ma970672i http://doi.org/10.1021/ma970672i .
A. Sunder , R. Mülhaupt , H. Frey . . Macromolecules , 2000 . 33 ( 2 ): 309 DOI: 10.1021/ma991191x http://doi.org/10.1021/ma991191x .
M. Päch , D. Zehm , M. Lange , I. Dambowsky , J. Weiss , A. Laschewsky . . J. Am. Chem. Soc. , 2010 . 132 ( 25 ): 8757 DOI: 10.1021/ja102096u http://doi.org/10.1021/ja102096u .
F. Boschet , T. Ono , B. Ameduri . . Macromol. Rapid Commun. , 2012 . 33 ( 4 ): 302 DOI: 10.1002/marc.201100737 http://doi.org/10.1002/marc.201100737 .
Y. Ren , Z. Wei , X. Leng , Y. Wang , Y. Li . . Polymer , 2015 . 78 51 DOI: 10.1016/j.polymer.2015.09.063 http://doi.org/10.1016/j.polymer.2015.09.063 .
S. Chen , D. Chen , M. Lu , X. Zhang , H. Li , X. Zhang , X. Yang , X. Li , Y. Tu , C.Y. Li . . Macromolecules , 2015 . 48 ( 23 ): 8480 DOI: 10.1021/acs.macromol.5b01791 http://doi.org/10.1021/acs.macromol.5b01791 .
M. Wang , T. Wang , K. Yuan , J. Du . . Chinese J. Polym. Sci. , 2016 . 34 ( 1 ): 44 DOI: 10.1007/s10118-016-1725-4 http://doi.org/10.1007/s10118-016-1725-4 .
J. Chen , D. Chen , W. Huang , X. Yang , X. Li , Y. Tu , X. Zhu . . Polymer , 2016 . 107 29 DOI: 10.1016/j.polymer.2016.11.001 http://doi.org/10.1016/j.polymer.2016.11.001 .
M.R. Seger , G.E. Maciel . . Anal. Chem. , 2004 . 76 ( 19 ): 5734 DOI: 10.1021/ac040104i http://doi.org/10.1021/ac040104i .
Farrar, T.C. and Becker, E.D., "Pulse and Fourier transform NMR", Academic Press, New York, 1969
G.F. Pauli , B.U. Jaki , D.C. Lankin . . J. Nat. Prod. , 2005 . 68 ( 1 ): 133 DOI: 10.1021/np0497301 http://doi.org/10.1021/np0497301 .
G.P. Mambrini , C. Ribeiroa , L.A. Colnago . . Magn. Reson. Chem. , 2012 . 50 ( 1 ): 1 DOI: 10.1002/mrc.v50.1 http://doi.org/10.1002/mrc.v50.1 .
F. Heatley , B. Wood . . Polymer , 1978 . 19 ( 12 ): 1405 DOI: 10.1016/0032-3861(78)90092-7 http://doi.org/10.1016/0032-3861(78)90092-7 .
T. Fang . . Macromolecules , 1990 . 23 ( 21 ): 4553 DOI: 10.1021/ma00223a010 http://doi.org/10.1021/ma00223a010 .
D. Roy , P.K. Basu , P. Raghunathan , S.V. Eswaran . . Magn. Reson. Chem. , 2004 . 42 ( 1 ): 76 DOI: 10.1002/(ISSN)1097-458X http://doi.org/10.1002/(ISSN)1097-458X .
Q. Xu , J. Chen , W. Huang , T. Qu , X. Li , Y. Li , X. Yang , Y. Tu . . Macromolecules , 2013 . 46 ( 18 ): 7274 DOI: 10.1021/ma400969a http://doi.org/10.1021/ma400969a .
T.B.T. Nguyen , T.T.C. Nguyen , H.C. Tra , C.K. Nguyen , N.Q. Tran . . Int. J. Polym. Anal. Charact. , 2015 . 20 ( 1 ): 57 DOI: 10.1080/1023666X.2014.955632 http://doi.org/10.1080/1023666X.2014.955632 .
J.S. Wang , K. Matyjaszewski . . J. Am. Chem. Soc. , 1995 . 117 ( 20 ): 5614 DOI: 10.1021/ja00125a035 http://doi.org/10.1021/ja00125a035 .
M. Kato , M. Kamigaito , M. Sawamoto , T. Higashimura . . Macromolecules , 1995 . 28 ( 5 ): 1721 DOI: 10.1021/ma00109a056 http://doi.org/10.1021/ma00109a056 .
J.F. Lutz , K. Matyjaszewski . . Macromol. Chem. Phys. , 2002 . 203 ( 10-11 ): 1385 DOI: 10.1002/1521-3935(200207)203:10/11<1385::AID-MACP1385>3.0.CO;2-X http://doi.org/10.1002/1521-3935(200207)203:10/11<1385::AID-MACP1385>3.0.CO;2-X .
J.F. Lutz , K. Matyjaszewski , Polym. Sci. J. . . Part A:Polym. Chem. , 2005 . 43 ( 4 ): 897 DOI: 10.1002/(ISSN)1099-0518 http://doi.org/10.1002/(ISSN)1099-0518 .
L. Gao , J. Oh , T. Chang , D. Chen , X. Li , X. Yang , Y. Tu , X. Zhu , C.Y. Li . . Polymer , 2016 . 101 379 DOI: 10.1016/j.polymer.2016.08.086 http://doi.org/10.1016/j.polymer.2016.08.086 .
Brandolini, A.J., Hills, D.D. and Vickers, T.J., "NMR spectra of polymers and polymer additives", Marcel Dekker, Inc., New York, 2000
T. Kitayama , T. Hirano , K. Hatada . . Polym. J. , 1996 . 28 ( 1 ): 61 DOI: 10.1295/polymj.28.61 http://doi.org/10.1295/polymj.28.61 .
Bax, A., Freeman, R. and Kempsell, S.P., J. Am. Chem. Soc., 1980, 102(14):4849
G. Bodenhausen , D. Ruben . . J. Chem. Phys. Lett. , 1980 . 69 ( 1 ): 185 DOI: 10.1016/0009-2614(80)80041-8 http://doi.org/10.1016/0009-2614(80)80041-8 .
W. Huang , Y. Wan , J. Chen , Q. Xu , X. Li , X. Yang , Y. Li , Y. Tu . . Polym. Chem. , 2014 . 5 ( 3 ): 945 DOI: 10.1039/C3PY00932G http://doi.org/10.1039/C3PY00932G .
A. Bax , M.F. Summers . . J. Am. Chem. Soc. , 1986 . 108 ( 8 ): 2093 DOI: 10.1021/ja00268a061 http://doi.org/10.1021/ja00268a061 .
L.S. Simeral . . Appl. Spectrosc. , 1995 . 49 ( 3 ): 400 DOI: 10.1366/0003702953963599 http://doi.org/10.1366/0003702953963599 .
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