Compositional analysis of nitrile terminated poly(porpylene imine) dendrimers by high-performance liquid chromatography combined with electrospray mass spectrometry

Autor: S. van der Wal, Ynze Mengerink, J. Brackman, E. M. M. De Brabander, A.P. Bruins, C.M Jeronimus-Stratingh

Publikováno v: Journal of Chromatography A, 825, 135-147. ELSEVIER SCIENCE BV
Journal of Chromatography A, 825(2), 135-147. ELSEVIER SCIENCE BV

Separation methods for nitrile terminated poly(propylene imine) dendrimers were developed to monitor and optimize theirlarge scale production. Detailed analyses of defects within a dendrimer generation were performed by HPLC at alkaline pH(sodium hyd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d6a6950064e5a753d05ee152123f146
https://doi.org/10.1016/s0021-9673(98)00707-9

Polypropylenimine dendrimers: Improved synthesis and characterization

Autor: J. Keulen, S. van der Wal, Rolf Scherrenberg, J. Brackman, Betty Coussens, M. Hogeweg, E. M. M. De Brabander, Ynze Mengerink, M. Mure‐Mak, H. De Man

Publikováno v: Macromolecular Symposia. 102:9-17

Both the Michael addition and the hydrogenation steps in the large scale synthesis of polypropylenimine dendrimers have been improved: by adding ammonia during the hydrogenations the substrate concentrations can be increased 8 times, the catalyst con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b013f70194ffc522552417c488c5aee4
https://doi.org/10.1002/masy.19961020104