A. M. Priegert, B. W. Rawe, S. C. Serin, and D. P. Gates, Polymers and the p-block elements, Chemical Society Reviews, vol.53, issue.773, pp.922-953, 2016.
DOI : 10.1002/anie.201406068

). A. Staubitz, A. Soto, I. Manners, S. Bernard, P. Miele et al., Angew. Chem. Int. Ed. Nat. Commun. 2015 Dalton Trans Adv. Sci. Angew. Chem. Int. Ed, vol.47, issue.55, pp.6212-6215, 2008.

A. Du, T. Jurca, G. R. Whittell, and I. Manners, , pp.1055-1062, 2016.

, 1800000 2

C. W. Homopolymer, R. T. Hamilton, A. Baker, I. Staubitz, H. C. Manners et al., Data given from SEC analysis in THF (with 0.1 w/w% nBu4NBr) and using standard calibration against polystyrene. [13] [e] Extrapolated data. [f] Not determined; insoluble product Accepted Manuscript, Chem. Soc. Rev. Top. Organomet. Chem. Chem. Rev. J. Am. Chem. Soc, vol.38, issue.136, pp.279-293, 2009.

M. C. Denney, V. Pons, T. J. Hebden, D. M. Heinekey, and K. I. Goldberg, Efficient Catalysis of Ammonia Borane Dehydrogenation, Journal of the American Chemical Society, vol.128, issue.37, pp.12048-12049, 2006.
DOI : 10.1021/ja062419g

P. J. Schneider, J. Gates, I. Schmedt-auf-der-günne, J. R. Manners, A. P. Vance et al., J. Am. Chem. Soc. Chem. Eur. J. ACS Catalysis ACS Catalysis, vol.132, issue.46, pp.13332-13345, 2010.

O. J. Metters, A. M. Chapman, A. P. Robertson, C. H. Woodall, P. J. Gates et al., Chem. Commun, vol.50, pp.2014-12146

L. Euzenat, D. Horhant, Y. Ribourdouille, C. Duriez, G. Alcaraz et al., Chem. Commun, pp.2280-2281, 2003.

). D. Gaines, R. K. Schaeffer-b-)-c, J. F. Narula, E. N. Janik, R. T. Duesler et al., Framery, M. Vaultier, pp.395-397, 1963.
DOI : 10.1021/ja00887a006

, The structures of these species have been ascertained by direct comparison with authentic samples prepared separately and/or by comparison with NMR data from available literature

, B NMR chemical shift and 1 JBH coupling constant for V-Bu are in agreement with the values reported by Manners and co-workers for (MeNH)2BH (d 27

, JBH = 127 Hz

I. Haddow and . Manners, Inorg. Chem, vol.2012, pp.8254-8264, 2051.

, The reaction is almost complete after 3h stirring at -40°C and the presence of soluble oligomers could also be detected. They are not as clearly detected at the end of the reaction probably leading to insoluble high mass polybutylaminoborane (see Figure S42- S43 in the S.I.)

N. E. Stubbs, T. Jurca, E. M. Leitao, C. H. Woodall, and I. Manners, Polyaminoborane main chain scission using N-heterocyclic carbenes; formation of donor-stabilised monomeric aminoboranes, Chemical Communications, vol.12, issue.80, pp.9098-9100, 2013.
DOI : 10.1002/chem.200600185

, Brown and co-workers reported an analogous approach, in the gas phase, from dimethylaminoborane dimer with methylamine leading to an uncharacterized polymer formulated as polymethylaminoborane, J. Inorg. Nucl. Chem, vol.29, pp.1197-1201, 1967.

, Since the hydrodynamic radius of polystyrene standards and polyaminoboranes may be different, the Mw values measured for polyaminoboranes by SEC analysis are only indicative and meaningful one relative to another, These Mw values do not necessarily reflect the real Mw values of the analyzed polymers

, Mn) values range from 1.2 to 10 for polyaminoboranes of Mw ca 200000-5500000 and are within the range of reported PDIs for alike I-Me polymer (Mw ca 10000-460000 and PDIs = 1.2-13)

M. Käß, A. Friedrich, M. Drees, and S. Schneider, Ruthenium Complexes with Cooperative PNP Ligands: Bifunctional Catalysts for the Dehydrogenation of Ammonia-Borane, Angewandte Chemie International Edition, vol.68, issue.5, pp.905-907, 2009.
DOI : 10.1002/anie.200805108