Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Taeyi Choi"'
Publikováno v:
Macromolecules. 45:8438-8444
The influence of poly(tetramethylene oxide) (PTMO) soft segment length on the phase-separated microstructure, state of hydrogen-bonded associations, and molecular dynamics was investigated in polyureas polymerized from the bulk. For higher PTMO molec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e570622712e9b5c942839e19e1affdd5
https://doi.org/10.1021/ma3016568
https://doi.org/10.1021/ma3016568
Publikováno v:
Macromolecules. 44:7831-7836
The effect of hard segment (4,4′-diphenylmethane diisocyanate–1,4-butanediol) content on the molecular dynamics of a series of PTMO-based segmented polyurethanes was investigated using broadband dielectric spectroscopy. The microphase-separated m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eeb262d9b310707bafdac9bc3b0056ba
https://doi.org/10.1021/ma2017138
https://doi.org/10.1021/ma2017138
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 49:865-872
A novel macrodiol based on mixed silicone and car- bonate chemistries was synthesized and used as a soft segment precursor in the synthesis of two series of segmented polyur- ethane (PU) copolymers varying in hard segment content and soft segment mol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d91dc2108ecbcc864317bd146f58a8df
https://doi.org/10.1002/polb.22260
https://doi.org/10.1002/polb.22260
Publikováno v:
Polymer. 51:4375-4382
Segmented polyurethane (PU) block copolymers were synthesized using 4,4′-methylenediphenyl diisocyanate and 1,4-butanediol as hard segments and oligomeric ethoxypropyl polydimethylsiloxane (PDMS) as the soft segments, with hard segment contents ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca7b1e315b1111bf43888506297725c6
https://doi.org/10.1016/j.polymer.2010.07.030
https://doi.org/10.1016/j.polymer.2010.07.030
Autor:
James Runt, Ajay Padsalgikar, Rebeca Hernández, Suphannee Pongkitwitoon, Jadwiga Weksler, Taeyi Choi
Publikováno v:
Polymer. 50:6305-6311
In this paper we explore the temperature dependence of segregation of hard and soft segments of selected segmented polyurethane copolymers using synchrotron small-angle X-ray scattering (SAXS). The copolymers are composed of the same hard segments bu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d29479f66c658dd61248ae6799424499
https://doi.org/10.1016/j.polymer.2009.10.067
https://doi.org/10.1016/j.polymer.2009.10.067
Publikováno v:
Polymer. 50:2320-2327
Segmented polyurethane block copolymers were synthesized using 4,4′-methylenediphenyl diisocyanate (MDI) and 1,4-butanediol (BDO) as hard segments and various soft segments derived from poly(hexamethylene oxide) (PHMO) and poly(dimethylsiloxane) (P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::990498f714a29caf831eef607924d42a
https://doi.org/10.1016/j.polymer.2009.03.024
https://doi.org/10.1016/j.polymer.2009.03.024
Autor:
Jadwiga Weksler, J. S. Lin, Rebeca Hernández, Taeyi Choi, C A Siedlecki, Ajay Padsalgikar, Elena Angelo, James Runt, Li Chong Xu
Publikováno v:
Macromolecules. 41:9767-9776
Three series of chemically well-defined polyurethanes were synthesized with the same hard segments but different soft-segment chemistries of interest in biomedical applications. The multiblock polyurethanes have soft segments composed of either an al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aadbb36a1f69aef3346a54e4d09aa9c6
https://doi.org/10.1021/ma8014454
https://doi.org/10.1021/ma8014454
Publikováno v:
Advanced Materials. 19:1403-1407
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4d2413cd5bd38019808c2d9a6ad5022
https://doi.org/10.1002/adma.200700178
https://doi.org/10.1002/adma.200700178
Autor:
Vladimir V. Tsukruk, Melburne C. Lemieux, Chaitanya K. Ullal, Taeyi Choi, Edwin L. Thomas, Ji-Hyun Jang
Publikováno v:
Advanced Materials. 18:2123-2127
Materials science, especially metallurgy, has long exploited the relationship between microstructural scale, arising from various processing routes, and resultant properties, with increasing emphasis on the benefits of ultrafine-scale structures. Cri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5f28291d73c3c87ed9f8233b6f87b8c
https://doi.org/10.1002/adma.200600249
https://doi.org/10.1002/adma.200600249
Autor:
Taeyi Choi, Vladimir V. Tsukruk, Chaitanya K. Ullal, Ji-Hyun Jang, Melburne C. Lemieux, Edwin L. Thomas
Publikováno v:
Advanced Functional Materials. 16:1324-1330
SU8. The yield strength and elastic properties of microfabricated structures are critical for the reliable performance of these microdevices. Current MEMS design assumes the preservation of the mechanical properties of materials within the microscopi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f853e14d794a18731b5315bed0b8c932
https://doi.org/10.1002/adfm.200500693
https://doi.org/10.1002/adfm.200500693