Evolution of glassy polymers used for gas separation

... evaporation of low boiling solvents is the key factor for the formation of defect-free gas separation hollow fiber membranes [17, 21] 1.1.3 The effects of air-gap on hollow fiber formation Air-gap ... and Literature Review on Hollow Fiber Formation for Gas Separation ……… ……………………………….1 1.1 Formation of hollow fiber membranes by phase inversion…………………...

Ngày tải lên: 14/09/2015, 08:46

... multitude applications of gas separation membranes are listed in Table 1.2 The major applications for gas separation membranes are discussed Table 1.2: Industrial applications of gas separation membranes ... development of membrane gas separation technology [14] Figure 1.2: Milestones on the development of membrane gas separations [14] 1.2 IMPORTANCE OF...

Ngày tải lên: 14/09/2015, 22:06

... for gas separation .4 1.3  Technology milestones of gas separation membranes .6 1.4  New classes of membrane materials 1.5  Polymers of intrinsic microporosity (PIMs) based membranes ... POLYMERS OF INTRINSIC MICROPOROSITY (PIM)- BASED MEMBRANES FOR GAS SEPARATION YONG WAI FEN (B Eng (Chemical) (Hons.), University Putra Malaysia) A THESIS SUBMI...

Ngày tải lên: 09/09/2015, 11:27

... Comparison of separation performance for hollow fiber membranes between the O2/N2 mixed gas and pure gas measurements……… … 245 Table B.3 Comparison of separation performance for hollow fiber membranes ... FABRICATION AND CHARACTERIZATION OF COMPOSITE MEMBRANES FOR GAS SEPARATION JIANG LANYING (B Sci., Wuhan University, P R China) A THESIS SUBMITTED FOR...

Ngày tải lên: 12/09/2015, 11:24

... MODIFICATION OF POLYIMIDE MEMBRANES FOR GAS SEPARATION XIAO YOUCHANG (B Sc, Xiamen University, China) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL ... Cross-linking Modification of Polyimide Membranes Induced by Amino Terminated Dendrimers……………………………………… 170 8.1.2 Carbonization of Polyimide Membranes to Enhance the Gas...

Ngày tải lên: 15/09/2015, 17:10

... reducing gases [12] To investigate the oxidation activity of synthesized and commercial materials, we performed TPR study of SnO2 with and without Pd (Fig 6) TPR profile of the synthesized SnO2 displays ... target gas is of the same order of magnitude as the resistance of the sensors on the basis of commercial SnO2 The use of synthesized SnO2 results in the highest...

Ngày tải lên: 19/03/2014, 16:47

... Y: Surface-enhanced Raman scattering of biological molecules on metal colloid II: effects of aggregation of gold colloid and comparison of effects of pH of glycine solutions between gold and silver ... and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate Nanoscale Research Letters 2011 6:263 Subm...

Ngày tải lên: 21/06/2014, 04:20

... referred to ii 8 9 10 10 11 11 12 13 15 18 23 24 28 33 36 36 37 38 39 14 14 16 21 22 27 29 29 31 34 34 35 37 Inside back cover © BSI 11 -19 98 BS 5440- 1: 1990 Foreword This Part of BS 5440 has been prepared ... 0.0 61 0.065 0.075 0.084 0.093 0 .10 3 0 .11 3 0.060 0.068 0.073 0.087 0 .10 2 0 .11 7 0 .13 1 0 .14 6 0.083 0.092 0 .10 0 0 .11 9 0 .13 8 0 .15 6 0 .18 1 0...

Ngày tải lên: 28/09/2014, 23:27

... necessary to inform the customer © BSI July 20 04 13 BS 5440- 2: 2000 Figure — Typical air vent arrangements 14 © BSI July 20 04 BS 5440- 2: 2000 Figure — Free-areas © BSI July 20 04 15 BS 5440- 2: 2000 NOTE ... part of this standard 12 © BSI July 20 04 BS 5440- 2: 2000 6 .2 Passive stack ventilation Passive stack ventilation (PSV) shall be considered indep...

Ngày tải lên: 28/09/2014, 23:27

... TAILORING THE PROPERTIES OF GLASSY POLYMERIC MEMBRANES FOR ENERGY DEVELOPMENT LI FUYUN B Tech (Hons.), NUS A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL ... porous or nonporous, the gas transport mechanisms vary from one to another The former is for the separation of gases on the basis of their molecular size throu...

Ngày tải lên: 09/09/2015, 17:56

... Literature review on thermally rearranged membranes for gas separation Thermally rearranged polymer membranes were studied for gas separation since 1990s Okamoto et al [19] studied the gas permeability ... Objective 1.1 Membranes for gas separation 10 1.2 Highly permeable polymer membranes for gas separation 11 1.3 Thermally rearranged polymeric...

Ngày tải lên: 10/09/2015, 09:27

... Biomaterials engineering 2.2 Significance and importance of tissue engineering 12 2.3 Poly(ε-caprolactone) thin films and matrices 16 2.4 Current progress of poly(ε-caprolactone) in biomedical engineering ... presented in the thesis showed the versatile use of lasers as a tool for laser micro -structuring and inducing chemical changes on selfdeveloped PCL thin film...

Ngày tải lên: 14/09/2015, 08:36

... modification 13 iii Polyimides Modifications and Carbon Molecular Sieves Derived from Polyimides for Gas Separation Shao Lu 1.4 Carbon Molecular Sieve Membranes (CMSMs) for Gas Separation 14 1.5 ... Polyimides Modifications and Carbon Molecular Sieves Derived from Polyimides for Gas Separation Shao Lu LIST OF TABLES Table 1.1 Membrane...

Ngày tải lên: 16/09/2015, 15:54

... coextrusion dual- layer hollow fiber formation • Morphology characterization on resultant dual- layer hollow fibers • Examination of gas separation performance of resultant dual- layer hollow fibers ... delamination-free dual- layer membranes 122 5.3.2 Fabrication of 6FDA–durene–mPDA/PES dual- layer membranes for gas separation 5.3.3 126 Separation perfo...

Ngày tải lên: 16/09/2015, 17:11