Young-hye Na  Young-hye Na photo       

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research
Almaden Research Center, San Jose, CA, USA
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Professional Associations

Professional Associations:  American Chemical Society  |  North American Membrane Society

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More information:  IBM membrane research


2014

Physico-chemical characterization of polyamide NF/RO membranes: Insight from streaming current measurements
E Idil Mouhoumed, Anthony Szymczyk, A Sch\"afer, Lydie Paugam, YH La
Journal of Membrane Science461, 130--138, Elsevier, 2014

Mesh-reinforced thin film composite membranes for forward osmosis applications: The structure--performance relationship
Daniel Stillman, Leslie Krupp, Young-Hye La
Journal of Membrane Science468, 308--316, Elsevier, 2014

The effect of cross-contamination in the sequential interfacial polymerization on the RO performance of polyamide bilayer membranes
Young-Hye La, Jacquana Diep, Radwan Al-Rasheed, Majed Nassar, E Idil Mouhoumed, Anthony Szymczyk, Geraud Dubois
Journal of Membrane Science466, 348--356, Elsevier, 2014


2013

Enhanced Desalination Performance of Polyamide Bi-layer Membranes Prepared by Sequential Interfacial Polymerization
Young-Hye La, Jacquana Diep, Radwan Al-Rasheed, Dolores Miller, Leslie Krupp, Geoffrey M Geise, Ankit Vora, Blake Davis, Majed Nassar, Benny D Freeman, others
Journal of Membrane Science437, 33-39, Elsevier, 2013


2012

Enhancing water permeability of fouling-resistant POSS--PEGM hydrogels using ‘addition--extraction’of sacrificial additives
Y.H. La, R. Sooriyakumaran, B.D. McCloskey, R.D. Allen, B.D. Freeman, R. Al-Rasheed
Journal of Membrane Science, Elsevier, 2012


2011

Computational modeling of reverse osmosis membrane active layers: structure and transport
Jed Pitera, Ting Chen, Young-hye Na, Ratnam Sooriyakumaran, Ankit Vora, Geraud Dubois
North American Membrane Society Annual Meeting, Las Vegas, NV, 2011

New materials for water purification membranes
Ankit Vora, Young-Hye La
Polymer Preprints 52(2), 1072, 2011

Bifunctional hydrogel coatings for water purification membranes: Improved fouling resistance and antimicrobial activity
Y.H. La, B.D.M. Closkey, R. Sooriyakumaran, A. Vora, B. Freeman, M. Nassar, J. Hedrick, A. Nelson, R. Allen
Journal of Membrane Science, Elsevier, 2011

Surface modification of commercial polyamide desalination membranes using poly (ethylene glycol) diglycidyl ether to enhance membrane fouling resistance
E.M. Van Wagner, A.C. Sagle, M.M. Sharma, Y.H. La, B.D. Freeman
Journal of Membrane Science 367(1), 273--287, Elsevier, 2011


2010

Advances in polymers for lithography and beyond
Robert D Allen, Joy Cheng, James L Hedrick, Daniel P Sanders, Ratnam Sooriyakumaran, Greg Wallraff, Young-Hye Na
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2010

Directed Self-assembly for Via Patterning
Joy Cheng, Charles Rettner, Young-hye Na, Jed Pitera, Daniel Sanders, Noel Arellano, Alex Friz, Ciaran Moore, Bill Hinsberg, Kafai Lai, others
as presented at SPIE Optical Microlithography24, 7637--18, 2010


Novel thin film composite membrane containing ionizable hydrophobes: pH-dependent reverse osmosis behavior and improved chlorine resistance
Y.H. La, R. Sooriyakumaran, D.C. Miller, M. Fujiwara, Y. Terui, K. Yamanaka, B.D. McCloskey, B.D. Freeman, R.D. Allen
J. Mater. Chem. 20(22), 4615--4620, The Royal Society of Chemistry, 2010

Leveraging resist chemistry research for water purification membrane technology
Robert D. Allen, Young-Hye La, Ratnam Sooriyakumaran, Masaki Fujiwara, Kazuhiro Yamanaka
Journal of Photopolymer Science and Technology23, 741-747, 2010


2009

Directed self-assembly on sparse chemical patterns for lithographic applications
Cheng, Joy Y.; Nelson, Alshakim; Rettner, Charles T.; Sanders, Daniel P.; Sutherland, Alexander; Pitera, Jed W.; Na, Young-Hye; Kim, Ho-Cheol; Hinsberg, William D.
J. Photopolym. Sci. Technol. 2(2), 219, The Conference of Photopolymer Science and Technology (CPST), 2009

Investigation of polymer-bound PAGs: Synthesis, characterization and initial structure/property relationships of anion-bound resists
Robert D Allen, Phillip J Brock, Young-Hye Na, Mark H Sherwood, Hoa D Truong, Gregory M Wallraff, Masaki Fujiwara, Kazuhiko Maeda
Journal of Photopolymer Science and Technology 22(1), 25--29, The Society of Photopolymer Science and Technology (SPST), 2009

Perpendicular orientation of domains in cylinder-forming block copolymer thick films by controlled interfacial interactions
E. Han, K.O. Stuen, M. Leolukman, C.C. Liu, P.F. Nealey, P. Gopalan
Macromolecules 42(13), 4896--4901, ACS Publications, 2009

Directed self-assembly on sparse chemical patterns for lithographic applications
Joy Y Cheng, Alshakim Nelson, Charles T Rettner, Daniel P Sanders, Alexander Sutherland, Jed W Pitera, Young-Hye La, Ho-Cheol Kim, William D Hinsberg
Journal of Photopolymer Science and Technology22, 219-222, 2009

Investigation polymer-bound PAGs: synthesis, characterization, and initial structure/property relationships of anion-bound resists
Robert D. Allen, Phillip J. Brock, Young-Hye La, Mark Sherwood, Hoa D. Truong, Gregory M. Wallraff, Masaki Fujiwara, Kazuhiro Maeda
Journal of Photopolymer Science and Technology22, 25-29, 2009

Assembly of Nanocrystal Arrays by Block-Copolymer-Directed Nucleation
S.A. Morin, Y.H. La, C.C. Liu, J.A. Streifer, R.J. Hamers, P.F. Nealey, S. Jin
Angewandte Chemie International Edition 48(12), 2135--2139, Wiley Online Library, 2009


2008

Ordering in Films of Sphere-Forming Block Copolymers on Striped Chemically Patterned Surfaces Park, Sang-Min; Craig, Gordon SW; La, Young-Hye; Nealey, Paul F
Morphological Reconstruction
Macromolecules (Washington, DC, United States) 41(23), 9124--9129, 2008

Morphology development in asymmetric poly (styrene-b-tert-butylacrylate) thin films by solvent annealing
M. Leolukman, Y.H. La, X. Li, P. Gopalan
Polymer journal 40(9), 825--831, Nature Publishing Group, 2008

Morphological reconstruction and ordering in films of sphere-forming block copolymers on striped chemically patterned surfaces
S.M. Park, G.S.W. Craig, Y.H. La, P.F. Nealey
Macromolecules 41(23), 9124--9129, ACS Publications, 2008

Characterization of cylinder-forming block copolymers directed to assemble on spotted chemical patterns
S.M. Park, G.S.W. Craig, C.C. Liu, Y.H. La, N.J. Ferrier, P.F. Nealey
Macromolecules 41(23), 9118--9123, ACS Publications, 2008

Effect of composition of substrate-modifying random copolymers on the orientation of symmetric and asymmetric diblock copolymer domains
E. Han, K.O. Stuen, Y.H. La, P.F. Nealey, P. Gopalan
Macromolecules 41(23), 9090--9097, ACS Publications, 2008


2007

PATTERNING OF BLOCK COPOLYMER MICRODOMAIN ORIENTATIONS IN THIN FILMS
I. In, S.M. Park, Y.H. La, P.F. Nealey, P. Gopalan
Polymer Preprints 48(1), American Chemical Society, Division of Polymer Chemistry, P. O. Box 20453, Newark, NJ, 07101, USA,, 2007

Directing the Assembly of Patterns with Complex Geometries using Block Copolymers and Chemically Nanopatterned Substrates
S.M. Park, P. Ravindran, Y.H. La, N. Ferrier, P. Nealey
Bulletin of the American Physical Society52, APS, 2007

Photopatternable imaging layers for controlling block copolymer microdomain orientation
E. Han, I. In, S.M. Park, Y.H. La, Y. Wang, P.F. Nealey, P. Gopalan
Advanced Materials 19(24), 4448--4452, Wiley Online Library, 2007

Combinatorial generation and replication-directed assembly of complex and varied geometries with thin films of diblock copolymers
S.M. Park, P. Ravindran, Y.H. La, G.S.W. Craig, N.J. Ferrier, P.F. Nealey
Langmuir 23(17), 9037--9045, ACS Publications, 2007

Pixelated chemically amplified resists: Investigation of material structure on the spatial distribution of photoacids and line edge roughness
Y.H. La, S.M. Park, R.P. Meagley, M. Leolukman, P. Gopalan, P.F. Nealey, others
Journal of Vacuum Science \& Technology B: Microelectronics and Nanometer Structures 25(6), 2508--2513, AVS, 2007

Directed assembly of cylinder-forming block copolymers into patterned structures to fabricate arrays of spherical domains and nanoparticles
Y.H. La, M.P. Stoykovich, S.M. Park, P.F. Nealey
Chemistry of Materials 19(18), 4538--4544, ACS Publications, 2007

Square arrays of vertical cylinders of PS-b-PMMA on chemically nanopatterned surfaces
S.M. Park, G.S.W. Craig, Y.H. La, H.H. Solak, P.F. Nealey
Macromolecules 40(14), 5084--5094, ACS Publications, 2007


2006

SOLVENT ANNEALING OF POLY (STYRENE-b-tert-BUTYLACRYLATE) THIN FILMS: EFFECT OF CASTING AND ANNEALING SOLVENT ON MORPHOLOGY
Melvina Leolukman, Young-Hye La, Paul F Nealey, Padma Gopalan
Polymer Preprints 47(2), 444, 2006

Long-range order and orientation of cylinder-forming block copolymers on chemically nanopatterned striped surfaces
E.W. Edwards, M.P. Stoykovich, H.H. Solak, P.F. Nealey
Macromolecules 39(10), 3598--3607, ACS Publications, 2006

Side-chain-grafted random copolymer brushes as neutral surfaces for controlling the orientation of block copolymer microdomains in thin films
I. In, Y.H. La, S.M. Park, P.F. Nealey, P. Gopalan
Langmuir 22(18), 7855--7860, ACS Publications, 2006


2005


Graphoepitaxy of cylinder-forming block copolymers for use as templates to pattern magnetic metal dot arrays
S. Xiao, X.M. Yang, E.W. Edwards, Y.H. La, P.F. Nealey
Nanotechnology16, S324, IOP Publishing, 2005


2004

Investigation of sub 50 nm patterned polymer brushes for lithographic applications
Erik W Edwards, Young-Hye Na, Tushar S Jain, Juan J de Pablo, Paul F Nealey
Bulletin of the American Physical Society 49(1), 2004


2003

NEXAFS studies on the soft X-ray induced chemical transformation of a 4-nitrobenzaldimine monolayer
Y.H. La, Y.J. Jung, T.H. Kang, K. Ihm, K.J. Kim, B. Kim, J.W. Park
Langmuir 19(23), 9984, [Washington, DC: American Chemical Society, c1985-, 2003

Pattern formation through selective chemical transformation of imine group of self-assembled monolayer by low-energy electron beam
Y.J. Jung, Y.H. La, H.J. Kim, T.H. Kang, K. Ihm, K.J. Kim, B. Kim, J.W. Park
Langmuir 19(10), 4512--4518, [Washington, DC: American Chemical Society, c1985-, 2003

Sub-100-nm pattern formation through selective chemical transformation of self-assembled monolayers by soft X-ray irradiation
Y.H. La, Y.J. Jung, H.J. Kim, T.H. Kang, K. Ihm, K.J. Kim, B. Kim, J.W. Park
Langmuir 19(10), 4390--4395, ACS Publications, 2003


2002

Selective Cleavage of Functional Groups in the Functionalized Organic Monolayers by Synchrotron Soft X-Rays
T.H. Kang, K.J. Kim, C.C. Hwang, K.W. Ihm, H.J. Shin, M.K. Lee, B. Kim, C.Y. Park, Y.H. La, J.H. Moon, others
Surface Review and Letters 9(1), 305--312, Singapore: World Scientific, 2002

Differential reactivity of nitro-substituted monolayers to electron beam and X-ray irradiation
Y.H. La, J.U.K.I.M. HYUN, I.S. Maeng, Y.J. Jung
Langmuir 18(1), 301--303, American Chemical Society, 2002

Selective cleavage of nitro groups in nitro-substituted aromatic monolayers by synchrotron soft X-rays: effect of molecular structure on cleavage rates
Y.H. La, H.J. Kim, I.S. Maeng, Y.J. Jung, J.W. Park, K.J. Kim, T.H. Kang, B. Kim
Langmuir 18(6), 2430--2433, [Washington, DC: American Chemical Society, c1985-, 2002


2000

Selective cleavage of the carbon-halide bond in substituted benzaldimine monolayers by synchrotron soft X-ray: anomalously large cleavage rate of the carbon-bromide bond
J.H. Moon, L. Young-Hye, J.Y. Shim, B.J. Hong, K.J. Kim, K. Tai-Hee, B. Kim, H. Kang, J.W. Park
Langmuir 16(6), 2981--2984, ACS AMERICAN CHEMICAL SOCIETY, 2000



1998

Selective cleavage of the nitro group from a nitrophenyl monolayer by synchrotron soft X-ray
J.H. Moon, K.J. Kim, T.H. Kang, B. Kim, H. Kang, J.W. Park
Langmuir 14(20), 5673--5675, ACS Publications, 1998

Preparation of N, N'-Disilylated 1, 8-Diaminonaphthalene Chelates and Their Group 4 Metal Complexes for Ethylene Polymerization
C.H. Lee, Y.H. La, S.J. Park, J.W. Park
Organometallics 17(17), 3648--3655, ACS Publications, 1998


Year Unknown

Enhanced RO Performance of Polyamide Bi-Layer Membranes Prepared by Sequential Interfacial Polymerization
Young-hye Na, J Diep, B Davis, A Vora, G Dubois, R Al-Rasheed, M Nassar, G Geise, B Freeman
Rasheed... - aiche.confex.com, 0

Novel Polyamide Bilayer Membranes With Improved Desalination Performance
Young-Hye Na, Jacquana Diep, Radwan Al-Rasheed, Blake Davis, Geoff Geise, Ankit Vora, Majed Nassar, Melanie McNeil, Benny Freeman, Geraud Dubois
Rasheed, B Davis, G Geise..., 0