Narrowly Dispersed Double-Walled Concentric Hollow Polymeric Microspheres with Independent pH and Temperature Sensitivity

2008 ◽  
Vol 41 (23) ◽  
pp. 9487-9490 ◽  
Author(s):  
Guoliang Li ◽  
Chenlu Lei ◽  
C. H. Wang ◽  
K. G. Neoh ◽  
E. T. Kang ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Polymeric Microspheres ◽  
Ph And Temperature Sensitivity

Synthesis and Characteristics of Thermo-and pH-Sensitive PNIPAAm/PVP Hydrogels

2013 ◽  
Vol 787 ◽  
pp. 190-196
Author(s):  
Zhi Jun Li
Keyword(s):  
Aqueous Solution ◽  
Electron Beam ◽  
Ionic Strength ◽  
Temperature Sensitivity ◽  
Critical Value ◽  
Solution Temperature ◽  
Feed Ratio ◽  
Swelling Ratio ◽  
Critical Solution Temperature ◽  
Ph And Temperature Sensitivity

Poly (N-isopropylacrylamide)(PNIPAAm)/Poly (N-vinylpyrrolidone)(PVP) hydrogels were prepared by irradiating the aqueous solution mixture of NIPAAm and PVP with electron beam. The effects of feed ratio, pH, and temperature on the swelling ratio of the hydrogels were investigated. It appeared that the hydrogels possessed both pH and temperature sensitivity, the lower critical solution temperature (LCST) of PNIPAAm/PVP hydrogels increased with the increasing of PVP content in the copolymers. The experimental results also showed that the hydrogels were ionic strength sensitivity, the swelling ratio decreased sharply when the ionic strength of the solution arrived to a certain critical value.

Soil C mineralization and temperature sensitivity in alpine grasslands of the Qinghai-Xizang Plateau

2014 ◽  
Vol 37 (11) ◽  
pp. 988-997 ◽  
Author(s):  
Li XU ◽  
Shu-Xia YU ◽  
Nian-Peng HE ◽  
Xue-Fa WEN ◽  
Pei-Li SHI ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
C Mineralization ◽  
Alpine Grasslands ◽  
Soil C ◽  
Xizang Plateau

scholarly journals Reply to Leuzinger et al.: Drought-induced tree mortality temperature sensitivity requires pressing forward with best available science

2009 ◽  
Vol 106 (38) ◽  
pp. E107-E107 ◽  
Author(s):  
H. D. Adams ◽  
M. Guardiola-Claramonte ◽  
G. A. Barron-Gafford ◽  
J. C. Villegas ◽  
D. D. Breshears ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Tree Mortality ◽  
Best Available Science
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