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Volume 38 - April 2013

Contents

Page 9 of 16

News & Analysis

Science Policy

Other

  • In Memoriam

  • Lhadi Merhari
  • Published online by Cambridge University Press:
    15 May 2013, p. 363
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Ziegler-Natta catalysis: 50 years after the Nobel Prize

Research Article

  • Some reflections on the current state of Cr-based polymerization catalysts

  • Max McDaniel
  • Published online by Cambridge University Press:
    13 March 2013, pp. 234-238

  • The state of Phillips Cr/silica catalyst technology is discussed in this article, including recent advances in the science and also economic and environmental challenges to its continued viability. Although these catalysts have often been described as “mature,” many new innovations have been introduced in the past decade that reduce cost, improve quality, and expand the range of products that can be made. Polymers having unusually high, and low, levels of long-chain branching have been introduced. Several advances in the control of the short-chain branch distribution have also been made. Ways to lower the catalyst costs have been successfully implemented, such that Phillips-type catalysts are still the least expensive in the industry. Finally, new chromium-containing hybrid catalysts have been made that marry attributes from single-site and conventional Cr oxide catalysts.

News & Analysis

Materials News

Other

  • Energy Focus: Perovskite-based planar heterojunction solar cell achieves record efficiency

  • Colin McCormick
  • Published online by Cambridge University Press:
    13 November 2013, pp. 888-891
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Science Policy

Other

  • EU-US joint consultative group meets on science and technology cooperation

  • Published online by Cambridge University Press:
    12 April 2013, p. 298
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Materials News

Other

  • Ferroelectric-like phase transition observed in a metal

  • Steven Spurgeon
  • Published online by Cambridge University Press:
    17 December 2013, p. 1002
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Research/Researchers

Other

  • Bio Focus: Bioinspired polymeric carbon nitride nanospheres dramatically improve photoredox catalysis

  • Steven Trohalaki
  • Published online by Cambridge University Press:
    14 January 2013, pp. 7-8
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Materials News

Other

  • Energy Focus: Cu-doping enables high-efficiency flexible-substrate CdTe solar cells

  • Colin McCormick
  • Published online by Cambridge University Press:
    14 October 2013, pp. 772-773
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  • Energy Focus: Quantum dot layer fine-tuned for higher efficiency QLEDs

  • Christopher Patridge
  • Published online by Cambridge University Press:
    09 August 2013, p. 599
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  • News: Materials Researchers

  • Published online by Cambridge University Press:
    09 August 2013, p. 600
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  • Nano Focus: Stretchable gold conductor grows its own wires

  • Published online by Cambridge University Press:
    14 October 2013, pp. 773-774
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Ziegler-Natta catalysis: 50 years after the Nobel Prize

Research Article

  • Functionalization of aliphatic polyketones

  • Philip C. Zehetmaier, Sergei I. Vagin, Bernhard Rieger
  • Published online by Cambridge University Press:
    13 March 2013, pp. 239-244

  • Although aliphatic polyketones built from carbon monoxide and olefins have not yet found widespread application in industry and everyday life, this material has great potential, as its properties can be tuned, almost boundlessly, to desired traits or values. For example, the melting temperature and the phase transition temperatures can be varied largely, therefore making it possible to design a polymeric material with adjustable properties. Regardless of its feasibility for replacing common commodity polymers such as polypropylene or polyethylene in some special utilization areas, we want to highlight some aspects for the great potential of aliphatic polyketones as a functional material in drug delivery, bioengineering, optical devices, and other applications.

News & Analysis

Science Policy

Other

  • Workshop makes recommendations to increase diversity in materials science and engineering

  • Ashley White
  • Published online by Cambridge University Press:
    06 February 2013, pp. 120-122
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  • Nanomaterials’ variety, complexity hard to fathom: napira.jrc.ec.europa.eu www.goodnanoguide.org www.nano.gov

  • Michael de Laine
  • Published online by Cambridge University Press:
    14 January 2013, pp. 10-11
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Materials News

Other

  • Crystalline reflectors enable ultralow-thermal-noise optical cavities

  • Colin McCormick
  • Published online by Cambridge University Press:
    12 September 2013, pp. 670-671
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  • Vanadium oxide metamaterial structure appears to cool as it heats

  • Tim Palucka
  • Published online by Cambridge University Press:
    17 December 2013, pp. 1002-1003
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Science Policy

Other

Materials News

Other

Research/Researchers

Other

  • Bio Focus: Is zinc the perfect material for bioabsorbable stents?

  • Joseph Bennington-Castro
  • Published online by Cambridge University Press:
    07 June 2013, pp. 438-440
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Features

Posterminaries

Other

  • Wiki your way into materials history

  • Piper Klemm
  • Published online by Cambridge University Press:
    15 July 2013, p. 583
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News & Analysis

Science Policy

Other

  • Tax credits available for US clean energy manufacturers: www.energy.gov

  • Published online by Cambridge University Press:
    12 April 2013, p. 298
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Page 9 of 16