PMID- 35653207
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220603
IS  - 2161-1653 (Electronic)
IS  - 2161-1653 (Linking)
VI  - 9
IP  - 8
DP  - 2020 Aug 18
TI  - Compatibilization of iPP/HDPE Blends with PE-g-iPP Graft Copolymers.
PG  - 1161-1166
LID - 10.1021/acsmacrolett.0c00339 [doi]
AB  - The compatibilization of polyethylene (PE) and isotactic polypropylene (iPP) 
      blends is of particular interest due to the challenges associated with recycling 
      these plastics from mixed waste streams. Polyethylene-graft-iPP copolymers 
      (PE-g-iPP) were prepared using a grafting-through strategy by copolymerization of 
      ethylene with allyl-terminated iPP macromonomers in the presence of a hafnium 
      pyridylamido catalyst. Graft copolymers with a variety of graft lengths (M(n) = 
      6-28 kg/mol), graft numbers, and graft spacings were prepared. These graft 
      copolymers were melt-blended with high-density polyethylene (HDPE) and iPP 
      (iPP/HDPE = 30/70 w/w), and the blend properties were evaluated by tensile 
      testing. The blends showed enhanced tensile strength at 5 and 1 wt % loading, 
      with higher tensile strength observed for larger block numbers and graft lengths. 
      These results indicate that graft copolymers are efficient compatibilizers for 
      blends of HDPE and iPP.
FAU - Klimovica, Kristine
AU  - Klimovica K
AD  - Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell 
      University, Ithaca, New York 14853, United States.
FAU - Pan, Sanshui
AU  - Pan S
AD  - Department of Chemical Engineering and Materials Science, University of 
      Minnesota, Minneapolis, Minnesota 55455, United States.
FAU - Lin, Ting-Wei
AU  - Lin TW
AD  - Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell 
      University, Ithaca, New York 14853, United States.
FAU - Peng, Xiayu
AU  - Peng X
AUID- ORCID: 0000-0002-6216-7493
AD  - Department of Chemical Engineering and Materials Science, University of 
      Minnesota, Minneapolis, Minnesota 55455, United States.
FAU - Ellison, Christopher J
AU  - Ellison CJ
AUID- ORCID: 0000-0002-0393-2941
AD  - Department of Chemical Engineering and Materials Science, University of 
      Minnesota, Minneapolis, Minnesota 55455, United States.
FAU - LaPointe, Anne M
AU  - LaPointe AM
AUID- ORCID: 0000-0002-7830-0922
AD  - Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell 
      University, Ithaca, New York 14853, United States.
FAU - Bates, Frank S
AU  - Bates FS
AUID- ORCID: 0000-0003-3977-1278
AD  - Department of Chemical Engineering and Materials Science, University of 
      Minnesota, Minneapolis, Minnesota 55455, United States.
FAU - Coates, Geoffrey W
AU  - Coates GW
AUID- ORCID: 0000-0002-3400-2552
AD  - Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell 
      University, Ithaca, New York 14853, United States.
LA  - eng
PT  - Journal Article
DEP - 20200729
PL  - United States
TA  - ACS Macro Lett
JT  - ACS macro letters
JID - 101574672
SB  - IM
EDAT- 2020/08/18 00:00
MHDA- 2020/08/18 00:01
CRDT- 2022/06/02 12:13
PHST- 2022/06/02 12:13 [entrez]
PHST- 2020/08/18 00:00 [pubmed]
PHST- 2020/08/18 00:01 [medline]
AID - 10.1021/acsmacrolett.0c00339 [doi]
PST - ppublish
SO  - ACS Macro Lett. 2020 Aug 18;9(8):1161-1166. doi: 10.1021/acsmacrolett.0c00339. 
      Epub 2020 Jul 29.