Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Ronald P. White"'
Publikováno v:
Machine Learning: Science and Technology, Vol 5, Iss 1, p 015047 (2024)
We propose improvements to the artificial neural network (ANN) method of determining electron scattering cross-sections from swarm data proposed by coauthors. A limitation inherent to this problem, known as the inverse swarm problem, is the non-uniqu
Externí odkaz:
https://doaj.org/article/efa870389a434aacb0ca0e4bc17e2336
Autor:
Jialin Qiu, Xuejian Chen, Amy N. Le, Carlos R. López-Barrón, Brian J. Rohde, Ronald P. White, Jane E. G. Lipson, Ramanan Krishnamoorti, Megan L. Robertson
Publikováno v:
Macromolecules. 56:2286-2297
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6971fe5b3a236fb21d1dc337fd11cd59
https://doi.org/10.1021/acs.macromol.2c01866
https://doi.org/10.1021/acs.macromol.2c01866
Autor:
Ronald P. White, Dragos Buculei, Alexia M. J. M. Beale, Ilias Goovaerts, Joseph L. Keddie, Jane E. G. Lipson
Publikováno v:
Soft Matter. 18:6660-6673
Strategies for synthesizing molecularly designed materials are expanding, but methods for their thermodynamic characterization are not. This shortfall presents a challenge to the goal of connecting local molecular structure with material properties a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9144f9716ddc0bdf8cef3f77f7b044fb
https://doi.org/10.1039/d2sm00959e
https://doi.org/10.1039/d2sm00959e
Autor:
Jane E. G. Lipson, Ronald P. White
Publikováno v:
Macromolecules. 54:4136-4144
It is now generally agreed that the most dramatic influence of a free surface on local relaxation dynamics occurs over the first 10 nm from the surface. Using the cooperative free volume (CFV) rate...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b516a8dd31aa8c6a2becf20fa1f5ff1e
https://doi.org/10.1021/acs.macromol.0c02742
https://doi.org/10.1021/acs.macromol.0c02742
Autor:
Jane E. G. Lipson, Ronald P. White
Publikováno v:
Soft Matter. 17:9755-9764
In this paper we model the segmental relaxation in poly(2-chlorostyrene) 18 nm freestanding films, using only data on bulk samples to characterize the system, and predict film relaxation times (τ) as a function of temperature that are in semi-quanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75a3cc5a044f59779560959bac21eadd
https://doi.org/10.1039/d1sm01175h
https://doi.org/10.1039/d1sm01175h
Autor:
Jane E. G. Lipson, Ronald P. White
Publikováno v:
ACS macro letters. 6(5)
In this article we show that inverse free volume is a natural variable for analyzing relaxation data on glass-forming liquids, and that systems obey the general form, log(τ/τref) = (1/Vfree) × f(T), where f(T) is a function of temperature. We demo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3c158cb34fe8084996b7a51941c3fb4
https://pubmed.ncbi.nlm.nih.gov/35610877
https://pubmed.ncbi.nlm.nih.gov/35610877
Autor:
Jane E. G. Lipson, Ronald P. White
Publikováno v:
ACS macro letters. 4(5)
There is a continuing, strong interest in making connections between the polymeric glass transition (Tg) and bulk properties. In this Letter we apply the Locally Correlated Lattice (LCL) model to study a group of 51 polymers and demonstrate two broad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fd560991c75890a67bfd58f08e1c7d0
https://pubmed.ncbi.nlm.nih.gov/35596302
https://pubmed.ncbi.nlm.nih.gov/35596302
Publikováno v:
ACS macro letters. 11(1)
Proximity to a nonrepulsive wall is commonly considered to cause slower dynamics, which should lead to greater relaxation times for capped thin polymer films than for bulk melts. To the contrary, here we demonstrate that Al-capped films of poly(2-chl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::105b5d470d955ba61d3b695979af2f46
https://pubmed.ncbi.nlm.nih.gov/35574787
https://pubmed.ncbi.nlm.nih.gov/35574787
Autor:
Yutaka Aoki, Jane E. G. Lipson, Ronald P. White, Joseph L. Keddie, Julia S. Higgins, João T. Cabral
Publikováno v:
Macromolecules. 53:7084-7095
We combine experiment and theory to elucidate how small, local, structural changes can impact miscibility in polymer blends. Small-angle neutron scattering (SANS) experiments yield both the phase boundaries and the temperature dependence of the secon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b9661f1fea7d8fd50ba46b6e750517a
https://doi.org/10.1021/acs.macromol.0c00706
https://doi.org/10.1021/acs.macromol.0c00706
Autor:
Jane E. G. Lipson, Ronald P. White
Publikováno v:
Rubber Chemistry and Technology. 92:612-624
We apply the cooperative free volume (CFV) rate model for pressure-dependent dynamics of glass-forming liquids and polymer melts, focusing on two new applications of the model, to natural rubber and to polyurea. In CFV, segmental relaxation times, τ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a33722211bdd1ab82810efbbff705ea
https://doi.org/10.5254/rct.19.80394
https://doi.org/10.5254/rct.19.80394