PMID- 30892758
OWN - NLM
STAT- MEDLINE
DCOM- 20191125
LR  - 20191125
IS  - 1521-3927 (Electronic)
IS  - 1022-1336 (Linking)
VI  - 40
IP  - 11
DP  - 2019 Jun
TI  - Tailoring Hexagonal Gibbsite Single Crystal Nanoplatelets for Ethylene 
      Polymerization and Nanocomposite Formation on MAO-Free Heterogeneous 
      Bis(imino)pyridine Iron(II) Catalyst.
PG  - e1900015
LID - 10.1002/marc.201900015 [doi]
AB  - Ultrathin single crystal gamma-Al(OH)(3) (Gibbsite) nanoplatelets with average 
      thickness <20 nm and length <800 nm, pretreated with trimethylaluminum (TMA), 
      represent highly efficient activators and supports bis(imino)pyridine iron (II) 
      (FeBIP) complex to produce high density polyethylene (HDPE) as well as 
      gibbsite/HDPE nanocomposites in exceptionally high yields. Opposite to both 
      methylaluminoxane (MAO)-activated homogeneous FeBIP catalyst and heterogenous 
      silica-supported single site catalysts, no addition of MAO is required. At low 
      TMA/Fe = 50 molar ratio, the superior catalyst activity (up to 6500 kg mol(-1) 
      h(-1) bar(-1) ) of FeBIP@TMA@Gibbsite is paralleled by controlled polyethylene 
      particle growth without encountering reactor-fouling problems typical for 
      homogeneous catalysts. TMA@Gibbsite is compared with other AlR(3) @Gibbsite 
      activators. The Al/Fe molar ratio governs catalyst activity as well as molar 
      mass, molar mass distribution, and thermal properties of polyethylene. Moreover, 
      hexagonal gibbsite nanoplatelets are uniformly dispersed in polyethylene to yield 
      agglomerate-free polyethylene/gibbsite nanocomposites.
CI  - (c) 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Zhong, Fan
AU  - Zhong F
AUID- ORCID: 0000-0002-4944-1734
AD  - Freiburg Materials Research Center (FMF) and Institute for Macromolecular 
      Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104, 
      Freiburg, Germany.
FAU - Schwabe, Jeremia
AU  - Schwabe J
AD  - Freiburg Materials Research Center (FMF) and Institute for Macromolecular 
      Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104, 
      Freiburg, Germany.
FAU - Thomann, Ralf
AU  - Thomann R
AD  - Freiburg Materials Research Center (FMF) and Institute for Macromolecular 
      Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104, 
      Freiburg, Germany.
FAU - Mulhaupt, Rolf
AU  - Mulhaupt R
AD  - Freiburg Materials Research Center (FMF) and Institute for Macromolecular 
      Chemistry, Albert-Ludwigs-University Freiburg, Stefan-Meier-Strasse 31, D-79104, 
      Freiburg, Germany.
LA  - eng
GR  - 03XP0054C/Bundesministerium fur Bildung und Forschung/
PT  - Journal Article
DEP - 20190320
PL  - Germany
TA  - Macromol Rapid Commun
JT  - Macromolecular rapid communications
JID - 9888239
RN  - 0 (Ethylenes)
RN  - 0 (Polymers)
RN  - 91GW059KN7 (ethylene)
RN  - E1UOL152H7 (Iron)
SB  - IM
MH  - Catalysis
MH  - Ethylenes/*chemistry
MH  - Iron/*chemistry
MH  - Nanocomposites/*chemistry
MH  - Nanotechnology/*methods
MH  - Polymers/*chemistry
OTO - NOTNLM
OT  - catalysis
OT  - ethylene polymerization
OT  - gibbsite
OT  - iron catalysts
OT  - nanotechnology
EDAT- 2019/03/21 06:00
MHDA- 2019/11/26 06:00
CRDT- 2019/03/21 06:00
PHST- 2019/01/10 00:00 [received]
PHST- 2019/02/18 00:00 [revised]
PHST- 2019/03/21 06:00 [pubmed]
PHST- 2019/11/26 06:00 [medline]
PHST- 2019/03/21 06:00 [entrez]
AID - 10.1002/marc.201900015 [doi]
PST - ppublish
SO  - Macromol Rapid Commun. 2019 Jun;40(11):e1900015. doi: 10.1002/marc.201900015. 
      Epub 2019 Mar 20.