PMID- 25367370
OWN - NLM
STAT- MEDLINE
DCOM- 20150924
LR  - 20150116
IS  - 1521-3927 (Electronic)
IS  - 1022-1336 (Linking)
VI  - 36
IP  - 2
DP  - 2015 Jan
TI  - Nanocomposites of phosphonic-acid-functionalized polyethylenes with inorganic 
      quantum dots.
PG  - 165-73
LID - 10.1002/marc.201400441 [doi]
AB  - Insertion of diethyl vinyl phosphonates and free vinyl phosphonic acid, 
      respectively, into [(P;O)Pd(Me)(dmso)] ((P;O) = kappa(2)-P,O-Ar2PC6H4SO2O with Ar = 
      2-MeOC6H4) (1-dmso) occurs in a 2,1- as well as 1,2-fashion, to form a four-and a 
      five-membered chelate [(P;O)Pdkappa(2)-C,O-CH(P(O)(OR)2)CH2CH3] and 
      [(P;O)Pdkappa(2)-C,O-CH2CH(P(O)(OR)2)CH3] (R = H, Et). No decomposition or other 
      reactions of 1 by free phosphonic acid moieties occur. Copolymerization in a 
      pressure reactor by 1-dmso yields linear random poly(ethylene-co-diethyl vinyl 
      phosphonate) and poly(ethylene-co-vinyl phosphonic acid). In these 
      copolymerizations, reversible coordination of the phosphonate moieties of free 
      monomer as well as chelate formation by incorporated monomer retards chain growth 
      as also evidenced by relative binding studies of diethyl phosphonate towards 1. 
      Post-polymerization emulsification of poly(ethylene-co-vinyl phosphonic acid) 
      together with CdSe/CdS quantum dots (QDs) yields submicron (ca. 50 nm from 
      dynamic light scattering (DLS) and transmission electron microscopy (TEM)) 
      polymer particles with the QDs embedded in the functionalized polyethylene in a 
      nonaggregated fashion. This embedding benefits the fluorescence behavior in terms 
      of continuous emission and life-time as revealed by wide-field fluorescence 
      measurements. These composite particle dispersions are employed as a 
      ''masterbatch" together with an aqueous high density polyethylene (HDPE) 
      dispersion to generate thin films (by spin-coating) and bulk materials (from the 
      melt), respectively, in which the inorganic nanoparticles remain highly disperse.
CI  - (c) 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Runzi, Thomas
AU  - Runzi T
AD  - Chair of Chemical Materials Science, Department of Chemistry, University of 
      Konstanz, Universitatsstrasse 10, 78457, Konstanz, Germany.
FAU - Baier, Moritz C
AU  - Baier MC
FAU - Negele, Carla
AU  - Negele C
FAU - Krumova, Marina
AU  - Krumova M
FAU - Mecking, Stefan
AU  - Mecking S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20141103
PL  - Germany
TA  - Macromol Rapid Commun
JT  - Macromolecular rapid communications
JID - 9888239
RN  - 0 (Phosphorous Acids)
RN  - 0 (Polyethylenes)
RN  - 13598-36-2 (phosphonic acid)
SB  - IM
MH  - Magnetic Resonance Spectroscopy
MH  - Microscopy, Electron, Transmission
MH  - Models, Chemical
MH  - Molecular Structure
MH  - Nanocomposites/*chemistry/ultrastructure
MH  - Particle Size
MH  - Phosphorous Acids/*chemistry
MH  - Polyethylenes/chemical synthesis/*chemistry
MH  - Polymerization
MH  - *Quantum Dots
OTO - NOTNLM
OT  - composite materials
OT  - functionalized polyethylenes
OT  - insertion phosphonic
OT  - phosphonates
OT  - polymerization
OT  - quantum dots
EDAT- 2014/11/05 06:00
MHDA- 2015/09/25 06:00
CRDT- 2014/11/05 06:00
PHST- 2014/08/07 00:00 [received]
PHST- 2014/10/01 00:00 [revised]
PHST- 2014/11/05 06:00 [entrez]
PHST- 2014/11/05 06:00 [pubmed]
PHST- 2015/09/25 06:00 [medline]
AID - 10.1002/marc.201400441 [doi]
PST - ppublish
SO  - Macromol Rapid Commun. 2015 Jan;36(2):165-73. doi: 10.1002/marc.201400441. Epub 
      2014 Nov 3.