Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Douglas R. Tree"'
Publikováno v:
Soft Matter. 19:1675-1694
We summarize recent progress in the development of top-down control over bottom-up colloidal processes using a taxonomy based on how active control is used to guide equilibrium, near-equilibrium, and far-from-equilibrium assembly.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db634f3ee08fb4a4abc881b10e98be9
https://doi.org/10.1039/d2sm01447e
https://doi.org/10.1039/d2sm01447e
Publikováno v:
ACS macro letters. 7(5)
Motivated by the much discussed, yet unexplained, presence of macrovoids in polymer membranes, we explore the impact of Marangoni flows in the process of nonsolvent induced phase separation. Such flows have been hypothesized to be important to the fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e08502ce1abfbf37a43b96783b4b9199
https://pubmed.ncbi.nlm.nih.gov/35632935
https://pubmed.ncbi.nlm.nih.gov/35632935
Autor:
Tatsuhiro Iwama, Douglas R. Tree, Eva Y. Chan, Glenn H. Fredrickson, Kris T. Delaney, Jan Ulric Garcia
Publikováno v:
ACS macro letters. 9(11)
We report the first simulations of nonsolvent-induced phase separation (NIPS) that predict membrane microstructures with graded asymmetric pore size distribution. In NIPS, a polymer solution film is immersed in a nonsolvent bath, enriching the film i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5716bd06c395473d8466f0d907b8d163
https://pubmed.ncbi.nlm.nih.gov/35617063
https://pubmed.ncbi.nlm.nih.gov/35617063
Publikováno v:
Soft matter. 18(4)
A facile way to generate compatibilized blends of immiscible polymers is through reactive blending of end-functionalized homopolymers. The reaction may be reversible or irreversible depending on the end-groups and is affected by the immiscibility and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f54d4646b1842720d8d4d90198dde4d
https://pubmed.ncbi.nlm.nih.gov/35005764
https://pubmed.ncbi.nlm.nih.gov/35005764
Publikováno v:
Biomicrofluidics. 17:014107
Biological systems rely on chemical gradients to direct motion through both chemotaxis and signaling, but synthetic approaches for doing the same are still relatively naïve. Consequently, we present a novel method for using chemical gradients to man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1547a9659986c19ee17449c6ec940bb9
https://doi.org/10.1063/5.0126690
https://doi.org/10.1063/5.0126690
Publikováno v:
The Journal of chemical physics. 155(21)
Semicrystalline polymers are ubiquitous, yet despite their fundamental and industrial importance, the theory of homogeneous nucleation from a melt remains a subject of debate. A key component of the controversy is that polymer crystallization is a no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f839245b0233ccabef8e002a3213238a
https://pubmed.ncbi.nlm.nih.gov/34879681
https://pubmed.ncbi.nlm.nih.gov/34879681
Publikováno v:
Soft matter. 17(1)
Biological cells have long been of interest to researchers due to their capacity to actively control their shape. Accordingly, there is significant interest in generating simplified synthetic protocells that can alter their shape based on an external
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3785c1887697b8b3a115ab1b86b67fb0
https://pubmed.ncbi.nlm.nih.gov/33179711
https://pubmed.ncbi.nlm.nih.gov/33179711
Autor:
Glenn H. Fredrickson, Timothy R. Scott, Lucas F. Santos, Jan Ulric Garcia, Caden B. Wilson, Douglas R. Tree
Publikováno v:
Soft matter. 15(23)
Nonsolvent induced phase separation (NIPS) is a widely occuring process used in industrial membrane production, nanotechnology and Nature to produce microstructured polymer materials. A variety of process-dependent morphologies are produced when a po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::302abbd4931d0aa98c3703f9b4dfc224
https://pubmed.ncbi.nlm.nih.gov/31025034
https://pubmed.ncbi.nlm.nih.gov/31025034
Publikováno v:
The European Physical Journal Special Topics. 223:3179-3200
Modeling the dynamics of a confined, semi exible polymer is a challenging problem, owing to the complicated interplay between the configurations of the chain, which are strongly affected by the length scale for the confinement relative to the persist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb4f2c2c7a42e8b51b53a581a347b4f4
https://doi.org/10.1140/epjst/e2014-02326-4
https://doi.org/10.1140/epjst/e2014-02326-4
Publikováno v:
Soft matter. 13(16)
We develop a multi-fluid model for a ternary polymer solution using the Rayleighian formalism of Doi and Onuki, and give an efficient pseudo-spectral method for solving both the diffusion and momentum equations that result. Subsequently, we find that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13c5c73f956216ea326f61e787be0c67
https://pubmed.ncbi.nlm.nih.gov/28367562
https://pubmed.ncbi.nlm.nih.gov/28367562