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@article{von:2022:10.1039/d2py01123a,
author = {von, Goetze R and Aljaber, A and Lee, K-Y and Hill, G and Wallis, C and Britovsek, GJP},
doi = {10.1039/d2py01123a},
journal = {Polymer Chemistry},
pages = {6377--6385},
title = {Towards degradable polyethylene: end-functionalised polyethylene (PE-X) and PE-I/LDPE blends from iron-catalysed chain growth of ZnEt2 with ethylene},
url = {http://dx.doi.org/10.1039/d2py01123a},
volume = {13},
year = {2022}
}

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TY  - JOUR
AB  - A series of end-functionalised polyethylene materials (PE-X) has been prepared via the catalysed chain growth (CCG) reaction of diethyl zinc with ethylene, catalysed by a bis(imino)pyridine iron catalyst activated by MAO. This CCG catalyst system enables the in situ formation of long alkyl chain zinc species Zn(PE)2, which are subsequently quenched to form PE-X. Quenching with oxygen results in PE-OH, but the functionalisation appears to be limited to approximately 80% due to the formation of mixed [ZnR(OR)]n clusters. Functionalisation with sulfur leads to polysulfides, PE-Sk-PE, whereby k is affected by temperature. Functionalisation with iodine leads to PE-I with high conversion, but the degree of functionalisation appears to be chain length dependant. PE-I has been blended with LDPE, either through solution mixing or via melt blending to give PE-I/LDPE blends with different chain lengths. Characterisation of the PE-I/LDPE blends has been carried by IR spectroscopy and thermal analysis (DSC). Surface analysis by FIB-SEM and EDX analysis up to 6 μm into the surface has shown a uniform distribution of PE-I within the LDPE matrix. The propensity of alkyl iodides to undergo photolytic cleavage makes these PE-I/LDPE materials interesting candidates for degradable PE.
AU  - von,Goetze R
AU  - Aljaber,A
AU  - Lee,K-Y
AU  - Hill,G
AU  - Wallis,C
AU  - Britovsek,GJP
DO  - 10.1039/d2py01123a
EP  - 6385
PY  - 2022///
SN  - 1759-9954
SP  - 6377
TI  - Towards degradable polyethylene: end-functionalised polyethylene (PE-X) and PE-I/LDPE blends from iron-catalysed chain growth of ZnEt2 with ethylene
T2  - Polymer Chemistry
UR  - http://dx.doi.org/10.1039/d2py01123a
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000882849800001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://pubs.rsc.org/en/content/articlelanding/2022/PY/D2PY01123A
UR  - http://hdl.handle.net/10044/1/100959
VL  - 13
ER  -

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