Browsing by Author "MAY, PETER"
Now showing items 1-10 of 10
-
Covalently functionalized hexagonal boron nitride nanosheets by nitrene addition
SATTI, AMRO; COLEMAN, JONATHAN NESBIT; GOUNKO, IOURI; MAY, PETER; O'NEILL, ARLENE; NICOLOSI, VALERIA (Wiley, 2012)Exfoliated h-BN nanosheets were covalently functionalized via a one-step nitrene addition using azide precursor molecules. Functionalized h-BN nanosheets were found to exhibit markedly enhanced dispersability relative to ... -
Development of stiff, strong, yet tough composites by the addition of solvent exfoliated graphene to polyurethane
COLEMAN, JONATHAN; KHAN, UMAR; O'NEILL, ARLENE; MAY, PETER (2010)We have prepared graphene dispersions, stabilised by polyurethane in tetrahydrofuran and dimethylformamide. These dispersions can be drop-cast to produce free-standing composite films. The graphene mass fraction is determined ... -
Economic impact of hospital inpatient palliative care consultation: review of current evidence and directions for future research.
NORMAND, CHARLES; MAY, PETER (2014)BACKGROUND: Maintaining the recent expansion of palliative care access in the United States is a recognized public health concern. Economic evaluation is essential to validate current provision and assess the case for ... -
Enhancing the mechanical properties of BN nanosheet-polymer composites by uniaxial drawing
KHAN, UMAR; MAY, PETER; COLEMAN, JONATHAN (2014)We have used liquid exfoliation of hexagonal Boron-Nitride (BN) to prepare composites of BN nanosheets of three different sizes in polyvinylchloride matrices. These composites show low levels of reinforcement, consistent ... -
Improved adhesive strength and toughness of polyvinyl acetate glue on addition of small quantities of graphene
COLEMAN, JONATHAN; KHAN, UMAR; MAY, PETER (2013)We have prepared composites of polyvinyl acetate (PVAc) reinforced with solution exfoliated graphene. We observe a 50% increase in stiffness and a 100% increase in tensile strength on addition of 0.1vol% graphene compared ... -
Oxygen radical functionalization of boron nitride nanosheets
MAY, PETER; COLEMAN, JONATHAN; MCGOVERN, IGNATIUS; GOUNKO, IOURI; SATTI, AMRO (2012)The covalent chemical functionalization of exfoliated hexagonal boron-nitride nanosheets (BNNSs) is achieved by the solution phase oxygen radical functionalization of boron atoms in the h-BN lattice. This involves a two-step ... -
Policy analysis: Palliative care in Ireland
MCCALLION, PHILIP; HYNES, GERALYN; MCCARRON, MARY; MAY, PETER (2014)Palliative care for patients with advanced illness is a subject of growing importance in health services, policy and research. In 2001 Ireland became one of the first nations to publish a dedicated national palliative care ... -
Polymer reinforcement using liquid-exfoliated boron nitride nanosheets
O'NEILL, ARLENE; COLEMAN, JONATHAN; KHAN, UMAR; MAY, PETER (2013)We have exfoliated hexagonal boron nitride by ultrasonication in solutions of polyvinylalcohol in water. The resultant nanosheets are sterically stabilised by adsorbed polymer chains. Centrifugation-based size-selection ... -
Reinforcement of metal with liquid-exfoliated inorganic nano-platelets
COLEMAN, JONATHAN NESBIT; MAY, PETER; KHAN, UMAR (2013)We have prepared metal matrix composites (MMCs) of a pewter alloy filled with liquid-exfoliated Molybdenum Telluride (MoTe2) nano-platelets. The combination of MoTe2 and pewter was chosen due to their near-identical ... -
Size selection of dispersed, exfoliated graphene flakes by controlled centrifugation
COLEMAN, JONATHAN; O'NEILL, ARLENE; MAY, PETER; KHAN, UMAR (2012)Liquid exfoliation of graphene generally results in flakes with lateral size of one micron or less on average, too small for many applications. In this paper we describe a method to separate an existing dispersion with ...