Sustainable Chiral Polyamides with High Melting Temperature via Enhanced Anionic Polymerization of a Menthone-Derived Lactam

2016 ◽  
Vol 37 (10) ◽  
pp. 851-857 ◽  
Author(s):  
Malte Winnacker ◽  
Michael Neumeier ◽  
Xiaohan Zhang ◽  
Christine M. Papadakis ◽  
Bernhard Rieger
Keyword(s):  
Melting Temperature ◽  
Anionic Polymerization ◽  
High Melting ◽  
High Melting Temperature

scholarly journals Isolation of RNA from a mixture and its detection by utilizing a microgel-based optical device

2018 ◽  
Vol 96 (12) ◽  
pp. 1079-1086 ◽  
Author(s):  
Molla R. Islam ◽  
Shakiba Azimi ◽  
Faranak Teimoory ◽  
Glen Loppnow ◽  
Michael J. Serpe
Keyword(s):  
Melting Temperature ◽  
Magnetic Beads ◽  
Colorimetric Detection ◽  
Optical Devices ◽  
High Melting ◽  
Dna Duplex ◽  
Dna And Rna ◽  
High Melting Temperature ◽  
Hybrid Duplex ◽  
Fluorescent Studies

In this investigation, we show that RNA can be separated from a solution containing DNA and RNA and the isolated RNA can be detected using poly (N-isopropylacrylamide-co-N-(3-aminopropyl) methacrylamide hydrochloride) microgel-based optical devices (etalons). The isolation of RNA was accomplished by using hairpin-functionalized magnetic beads (MMPDNA) and differential melting, based on the fact that the DNA–RNA hybrid duplex is stronger (i.e., high melting temperature) than the DNA–DNA duplex (i.e., low melting temperature). By performing concurrent etalon sensing and fluorescent studies, we found that the MMPDNA combined with differential melting was capable of selectively separating RNA from DNA. This selective separation and simple colorimetric detection of RNA from a mixture will help lead to future RNA-based disease diagnostic devices.

The anomalously high melting temperature of bilayer ice

2010 ◽  
Vol 132 (12) ◽  
pp. 124511 ◽  
Author(s):  
Noah Kastelowitz ◽  
Jessica C. Johnston ◽  
Valeria Molinero
Keyword(s):  
Melting Temperature ◽  
High Melting ◽  
High Melting Temperature

Phase relationships in the system Si3N4–SiO2–Yb2O3

1995 ◽  
Vol 10 (2) ◽  
pp. 240-242 ◽  
Author(s):  
Toshiyuki Nishimura ◽  
Mamoru Mitomo
Keyword(s):  
Melting Temperature ◽  
Silicon Oxynitride ◽  
High Melting ◽  
Powder Diffraction Data ◽  
Intergranular Phase ◽  
X Ray ◽  
High Melting Temperature ◽  
Nitride Ceramics ◽  
Unit Cells ◽  
Phase Relationships

Phase relationships in the system Si3N4−SiO2−Yb2O3 have been investigated at 1750 °C and compared with those in the system Si3N4−SiO2−Y2O3. Two types of ytterbium silicon oxynitride, Yb2Si3O3N4 (tetragonal) and Yb4Si2O7N2 (monoclinic), were confirmed to exist. The x-ray powder diffraction data of two compounds were indexed based on the space group and unit cells. Melting temperature of Yb4Si2O7N2 was determined as 1870 °C. Yb4Si2O7N2 is a better intergranular phase of silicon nitride ceramics for its high melting temperature.

scholarly journals Direct-Write Dewetting of High Melting Temperature Metals on Flexible Substrates

2019 ◽  
Vol 9 (15) ◽  
pp. 3165
Author(s):  
Anthony J. Ferrer ◽  
Anna Halajko ◽  
Glenn G. Amatucci
Keyword(s):  
Thin Films ◽  
Melting Temperature ◽  
Near Infrared ◽  
Microelectromechanical Systems ◽  
Modern Technology ◽  
Direct Write ◽  
High Melting ◽  
Mems Devices ◽  
High Melting Temperature ◽  
Wide Range

Microelectromechanical systems (MEMS) are pervasive in modern technology due to their reliability, small foot print, and versatility of function. While many of the manufacturing techniques for MEMS devices stem from integrated circuit (IC) manufacturing, the wide range of designs necessitates more varied processing techniques. Here, new details of a scanning laser based direct-write dewetting technique are presented as an expansion of previous demonstrations. For the first time, the ability to pattern a high melting temperature and high reflectance metallic thin films of Ni and Ag, respectively, on polymer substrates is reported. Novel methods for reducing the power necessary for processing highly reflective films are demonstrated by depositing very thin films of high near-infrared absorbance.

Understanding recovery boiler smelt runoff phenomena

TAPPI Journal ◽  
2015 ◽  
Vol 14 (1) ◽  
pp. 41-50 ◽  
Author(s):  
HONGHI TRAN ◽  
ANDREW K. JONES ◽  
THOMAS M. GRACE
Keyword(s):  
Melting Temperature ◽  
Significant Role ◽  
High Melting ◽  
High Melting Temperature ◽  
Recovery Boilers ◽  
Personnel Safety ◽  
Recovery Boiler ◽  
Runoff Events

There is considerable interest in the nature and causes of heavy smelt runoff from recovery boilers because of the role it has played in numerous dissolving tank explosions and for personnel safety around the dissolving tank. Most mills have experienced runoff problems, which can be caused by cleaning plugged spouts, burning down a large bed, low sulfidity smelt, startup with a bed in the unit, and improper firing practices. The peak smelt flow during a runoff is often 3 to 5 times normal and may be much greater in severe cases. Heavy runoffs are self-limiting and typically last less than 30 min. The geometry of the lower furnace plays a significant role in runoff events. Sloped floor units are more vulnerable to smelt pool buildup and heavy runoff when released. Decanting bottom units are inherently more tolerant of smelt pool buildup. Low sulfidity results in smelt with a high melting temperature, making the smelt easy to freeze and difficult to flow. Sulfate-rich slag/deposits falling on the hearth from the upper furnace can contribute significantly to runoff problems by causing dams and spout plugging, increasing the load of smelt pool to be removed, decreasing bed temperatures, and lowering the sulfidity of the smelt leaving the furnace.

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