Peterborough, Canada
Peterborough, Canada

Trent University is a liberal arts and science-oriented institution located along the Otonabee River in Peterborough and Durham, Ontario, Canada.The enabling legislation is the Trent University Act, 1962-63. The university was founded through the efforts of a citizens' committee interested in creating a university to serve the Trent valley. The chancellor of Trent University is Don Tapscott, and Dr. Leo Groarke is the president and vice-chancellor.The Symons campus of Trent is approximately 5.6 km2 , over half of which is a part of Trent's Nature Areas, an ecologically diverse wild-life preserve. It is divided into a series of colleges: Champlain, Lady Eaton, Catharine Parr Traill, Otonabee, Peter Gzowski, and Julian Blackburn. Each college has its own residence hall, dining room, and student government, other than Julian Blackburn which is a non-residential college and home to Trent's 1,700 part-time students. The campus plan and the original college buildings were designed by the Canadian architect Ron Thom. A large portion of the main campus consists of land that was donated by General Electric Canada. This donation included a functioning hydroelectric power plant dating from the 1890s, which still generates a substantial portion of the university's electricity; the power plant is being updated and a second generating plant being considered.Trent also runs a full- and part-time program in Durham at the Thornton Road campus, with an enrolment of over 800 students. The university is represented in Canadian Interuniversity Sport by the Trent Excalibur. Some of the specialized programs at Trent include the Queen's University/Trent concurrent education program, the Trent University School of Education, a joint program with Fleming College allowing students to earn a B.Sc.F.S. in Forensic Science, and a B.Sc.N. program in Nursing. Wikipedia.


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This present disclosure relates to biodiesel compositions comprising polymeric pour point depressants, and crystallization modifiers, to improve cold flow properties for biodiesel fuels.


Patent
Trent University | Date: 2016-10-28

This application relates to the polymorphism and microstructure of certain triacylglycerols and fatty acid methyl esters, including 1,2-dioleoyl-3-stearoyl glycerol and methyl stearate, and how the properties of these individual components in a biodiesel fuel, as well as their combined mixtures, helps understand the fundamental mechanisms of their crystallization so as to design biodiesel fuels with improved low temperature characteristics.


Patent
Trent University | Date: 2016-11-16

The disclosure generally provides branched diester compounds having exceptional low-temperature and flow properties. The disclosure also provides uses of the branched diester compounds in lubricant compositions, for example, as a base oil, and in other applications where their low-temperature and flow properties can be employed beneficially. The disclosure also provides efficient and green methods for making the branched diester compounds. In certain embodiments, a vegetable oil-based diester (1,6-hexyldioleate) was branched with propanoic acid (C3) using a green synthetic approach involving solvent-free and catalyst-free epoxide ring opening followed by in situ normal esterification. A total of three branched ester derivatives possessing varied numbers of internal protruding branched ester groups and hydroxyl groups were obtained. All of the pure branched derivatives were comprised of mixtures of positional isomers and/or stereoisomers. Differential scanning calorimetry (DSC) showed that regardless of the composition inhomogeneity of each branched derivative, crystallization was suppressed completely in all of the branched compounds, and they all demonstrated glass transitions below 65 C. Without being bound by any theory, it is believed that this unique thermal behavior is attributed to the internal protruding branched moieties and hydroxyl groups, which dramatically slowed down mass transfer starting with the least branched compound (2-branched derivative). The viscosity of the branched compounds was one order of magnitude larger than that of the starting di ester due to the increased branching and increased resistance to flow associated with hydrogen bonding introduced by the OH groups. Overall, these branched diesters demonstrated superior low temperature and flow properties comparable to existing non-sustainable commercial lubricants and analogous biobased materials which makes them suitable alternatives for use in lubricant formulations particularly in high performance industrial gear and bearing lubricants.


The disclosure generally provides high-molecular-weight thermoplastic polyester-based urethanes (TPEUs). In some embodiments, the component monomers of the TPEUs are entirely derived from renewable sources. The disclosure also provides methods of making high-molecular-weight TPEUs, and, in particular, methods for achieving such high molecular weights. The disclosure also provides certain uses of such TPEUs. Entirely lipid-derived segmented thermoplastic TPEU elastomers with rubber-like properties such as low modulus and high elongation were produced by incorporating 1,9-nonanediol (ND) as chain extender with oleic acid derived polyester diols (PEDs) and 1,7-heptamethylene diisocyanate (HPMDI). Enhanced elastomeric properties were achieved by optimizing hydrogen bond density and phase separation of the TPEU via customized polymerization protocols. The novel TPEUs showed extensive degradation under hydrothermal ageing in water at 80 C. and achieved a tensile half-life in one day of immersion. For the first time, entirely lipid-derived TPEU elastomers with thermal and mechanical properties comparable to commercially available petroleum-based analogues and a controlled life-cycle were achieved, demonstrating the viability of potential alternatives to petroleum-derived elastomers and credible potential in biomedical applications especially as bio-resorbable implants or tissue scaffolds.


The disclosure generally provides high-molecular-weight thermoplastic polyester-based urethanes (TPEUs). In some embodiments, the component monomers of the TPEUs are entirely derived from renewable sources. The disclosure also provides methods of making high-molecular-weight TPEUs, and, in particular, methods for achieving such high molecular weights. The disclosure also provides certain uses of such TPEUs. High molecular weight, semi-crystalline TPEU elastomers were synthesized from polyester diols (PEDs) and 1,7 heptamethylene diisocyanate (HPMDI) both derived from oleic acid. Functional group stoichiometry and polymerization time were used as tools to control molecular weight and optimize the thermal and mechanical properties of the TPEU. A targeted range of PEDs with controlled molecular weights and narrow polydispersity indices were obtained in high yields using an induced stoichiometric imbalance method. The PEDs were reacted with HPMDI with different NCO:OH ratios (1.1 to 2.1) and polymerization times (2 to 24 hours) in order to obtain high molecular weight TPEUs. Solvent-resistant TPEUs, displaying polyethylene-like behavior with controlled polyester and urethane segment phase separation were obtained and characterized by FTIR, ^(1)H-NMR, GPC, DSC, TGA and tensile tests in order to reveal the structure-property relationships. Melting and glass transition temperatures, tensile strength and maximum strain increased with molecular weight approaching saturation values, demonstrating a plateau effect of molecular weight on physical properties. The novel TPEUs showed extensive degradation under hydrothermal ageing in water at 80 C. and achieved a tensile half-life in one day of immersion. The entirely lipid-derived TPEUs exhibited thermal and mechanical properties comparable to commercially available entirely petroleum-based analogues.


News Article | May 5, 2017
Site: phys.org

The Nottingham Trent University study is investigating how red squirrels currently utilise and exploit urban environments – so that this information can be used to help better manage these habitats to their advantage. There are thought to be about 140,000 red squirrels left in the UK, with numbers dwindling as a result of being outcompeted by the hardier grey squirrel, which was introduced from the United States in the late 1800s. Using Formby in Merseyside as their study site – a stronghold for red squirrels – the researchers will examine the reds' patterns of movement and their home ranges. They will also investigate the effects of living in close proximity to humans, such as activities and opportunities for supplementary feeding and hotspots linked to traffic mortality. The impact upon squirrel populations of the gradual removal of trees in nearby residential gardens – a high-quality habitat for the reds – will be studied as part of the four-year project, which also involves Lancashire Wildlife Trust and National Trust Formby. The work will involve using tracking technology to monitor movements in nearby gardens and woods. Questionnaires to volunteers will assess how and when they currently feed the reds and their thoughts on squirrel conservation generally. Any dead red squirrels found during the study will also be tested for disease and cause of death. Red squirrels have suffered since the introduction of the non-native greys. Grey squirrels carry the squirrelpox virus – a disease which is harmless to them but can kill reds in just a few weeks, and they can also digest seeds such as acorns more efficiently which provides them with additional food sources. "We hope that this study will provide us with crucial insight into the urban ecology and conservation of the UK's red squirrels," said Kat Fingland, a researcher in Nottingham Trent University's School of Animal, Rural and Environmental Sciences. She said: "We want to take all the information we gather on how red squirrels exploit urban habitats and resources and use it to develop a strategy for managing urban areas for their benefit. "We could look to develop new urban refuges for reds, encouraging them to disperse into neighbouring towns, and help to find new ways for them to thrive alongside people." Kate Martin, Lead Ranger at National Trust Formby, said: "It's great to have this study taking place at Formby. Our red squirrel population lives in the coastal pinewoods but is quite close to the urban fringe of Formby town – and of course lots of visitors. We'll be very interested to see the results of Kat Fingland's work."


Patent
Trent University | Date: 2016-05-18

This invention relates to base ester compounds and complex ester compounds that can be used as a base stock for lubricant applications or a base stock blend component for use in a finished lubricant or for particular applications, and methods of making the same. The base ester compounds and complex esters described herein comprise dimer and/or trimer esters, and their respective branched derivatives.


Metathesized triacylglycerol green polyols and their related physical and thermal properties are disclosed. Such metathesized triacylglycerol green polyols are also used as a component of polyurethane applications, including polyurethane foams.


Polyols derived from palm oil fractions of metathesized triacylglycerols, and their related physical properties are disclosed. Such metathesized triacylglycerol polyols are also used as a component of polyurethane applications, including polyurethane foams.


Metathesized triacylglycerol polyols, fractionated polyol variants thereof, and their related physical and thermal properties are disclosed.

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