Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Anthony Ndiripo"'
Publikováno v:
Journal of Polymer Science. 60:1059-1078
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c356c8be593cd4e9312a73ff1ab83ec2
https://doi.org/10.1002/pol.20210236
https://doi.org/10.1002/pol.20210236
Unraveling Multiple Distributions in Chain Walking Polyethylene Using Advanced Liquid Chromatography
Publikováno v:
Macromolecules. 53:3765-3777
Chain-walking (CW) catalysis applied to α-olefin polymerization gives rise to structurally unparalleled macromolecules with diverse topological and rheological properties. The specific motion patte...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b6b73f91c579295891ecf28221b2fb3
https://doi.org/10.1021/acs.macromol.0c00314
https://doi.org/10.1021/acs.macromol.0c00314
Publikováno v:
Analytical Chemistry. 92:7325-7333
Olefin copolymers are complex polymer materials that exhibit multiple distributions in molecular properties such as molar mass, chemical composition, and branching. To address the multivariate molecular compositions, chromatographic protocols have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6912258de78f6863d5e9056624b2d49c
https://doi.org/10.1021/acs.analchem.0c01095
https://doi.org/10.1021/acs.analchem.0c01095
Publikováno v:
Polymer International. 69:291-300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b84f7002c75ac15d79e92d6a6aa6c8e
https://doi.org/10.1002/pi.5950
https://doi.org/10.1002/pi.5950
Publikováno v:
Polymer Chemistry. 10:5859-5869
Carboxylic acid-functionalized polyethylenes derived from acrylic acid and methacrylic acid are difficult to characterize chromatographically owing to their insoluble nature in conventionally used solvents. These functionalized polyolefins are insolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c7f912cc452d9b1ddc9e71886271e04
https://doi.org/10.1039/c9py01191a
https://doi.org/10.1039/c9py01191a
Publikováno v:
Journal of chromatography. A. 1653
Temperature gradient interaction chromatography (TGIC) at high temperatures is a powerful method for the chemical composition separation of polyolefins. TGIC is a two-step process where the sample is crystallized on the stationary phase at low temper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f490b84726184cd0cf387b5625b5f77b
https://pubmed.ncbi.nlm.nih.gov/34332317
https://pubmed.ncbi.nlm.nih.gov/34332317
Autor:
Anthony Ndiripo, Helen Lamola, Petronella Zabesuthu Ndlovu, Albena Lederer, Harald Pasch, Albert Johannes van Reenen
Publikováno v:
Ndiripo, A.; Lamola, H.; Ndlovu, P.; Lederer, A.; Pasch, H.; van Reenen, A.: Reverse Engineering of Chemically Similar Bimodal High Density Polyethylenes: A Comprehensive Study Using Advanced Chromatographic Techniques. In: Macromolecular Materials and Engineering. Vol. 307 (2022) 9, 2200149. (DOI: /10.1002/mame.202200149)
Bimodal high-density polyethylene (bHDPE) is a complex, multicomponent polyethylene (PE) material whose synthesis in a multistage process can be challenging. Three bHDPEs with good and bad end-use properties are reverse engineered using advanced anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::060d91898bb5ec8eff76345fb8a14fef
https://doi.org/10.1002/mame.202200149
https://doi.org/10.1002/mame.202200149
Publikováno v:
RSC advances. 10(31)
The chromatographic separation of complex polyolefins on porous graphitic carbon stationary phases is strongly influenced by the composition of the mobile phase. Of particular interest is the effect of the chemical structure of the adsorption promoti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::132c4e8c0cf4e17ac27220599b82adcb
https://pubmed.ncbi.nlm.nih.gov/35517227
https://pubmed.ncbi.nlm.nih.gov/35517227
State-of-the-art liquid interaction chromatography (IC) allows separation of macromolecules according to chemical composition (CC), functionality or molecular topology in contrast to size-based approaches such as size exclusion chromatography (SEC),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::811f21bc033d135c0b4ac09072477952
Autor:
Harald Pasch, Anthony Ndiripo
Publikováno v:
Analytical Chemistry. 90:7626-7634
This report addresses the comprehensive analysis of oxidized/functionalized polyethylene waxes according to chemical composition and molar mass by selective chromatographic methods. For the first time, tailored high-temperature interaction chromatogr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb72fc750c95889af642b818a387ad6a
https://doi.org/10.1021/acs.analchem.8b01480
https://doi.org/10.1021/acs.analchem.8b01480