Cloud point pressure in the system polyethylene + ethylene – Impact of branching

2016 ◽  
Vol 428 ◽  
pp. 38-47 ◽  
Author(s):  
Christoph Walowski ◽  
Kai Langenbach ◽  
Dieter Browarzik ◽  
Sabine Enders
Keyword(s):  
Cloud Point ◽  
Point Pressure ◽  
Cloud Point Pressure

Phase Behaviours of Polybutadiene–Polyacrylic Acid Brushes in Compressed Carbon Dioxide

2015 ◽  
Vol 68 (8) ◽  
pp. 1255 ◽  
Author(s):  
Rui Zhang ◽  
Lixiao Liu ◽  
Yicun Wen ◽  
Yu Cang ◽  
Guixin Shi ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Phase Separation ◽  
Acrylic Acid ◽  
Ternary System ◽  
Polyacrylic Acid ◽  
Polymer Brushes ◽  
Phase Behaviour ◽  
Point Pressure ◽  
Cloud Point Pressure ◽  
Co2 Addition

Our present work investigated the phase behaviour of polybutadiene–poly acrylic acid (PB–PAA) brushes–solvent–CO2 ternary system in detail. The phase separation pressures increased with increasing temperatures and solid contents of PB–PAA solution, and decreased with increasing sizes of the brushes. Considering that the expansion of water was much smaller than that of ethanol by compressed CO2, a higher cloud point pressure of CO2 could be employed to reach the phase separation when water was added as the co-solvent. Owing to the penetration of CO2 into the periphery of the shell, the chains of the polymer brushes initially shrank and then turned to aggregations before finally precipitating upon CO2 addition. Our results provide a simple and effective way for separation and recovery of polymer brushes that could promote a wider range of their applications.

1367: Correlation between 24 Hour PAD Test and the Abdominal Leak Point Pressure in Incontinent Men After Radical Prostatectomy

2006 ◽  
Vol 175 (4S) ◽  
pp. 440-441
Author(s):  
Rodolfo B. Reis ◽  
Antonio A. Rodrigues ◽  
Adauto Cologna ◽  
Haylton J. Suaid ◽  
Antonio C.P. Martins ◽  
...  
Keyword(s):  
Radical Prostatectomy ◽  
Leak Point Pressure ◽  
Pad Test ◽  
Point Pressure

1296: Effect of Botulinum Toxin a on Urethral Outlet Resistance by Measuring Changes in Leak Point Pressure

2005 ◽  
Vol 173 (4S) ◽  
pp. 351-352
Author(s):  
Nilson A. Salas ◽  
George T. Somogyi ◽  
Bryce H. Vincent ◽  
Timothy B. Boone ◽  
Christopher P. Smith
Keyword(s):  
Botulinum Toxin ◽  
Botulinum Toxin A ◽  
Leak Point Pressure ◽  
Toxin A ◽  
Point Pressure
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