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Neutron reflectivity measurements of the translational motionof tris(naphthylbenzene) at the glass transition temperature
The translational dynamics of the low molecular weight glass-former tris(naphthylbenzene) have been studied on the length scale of a few nanometers at the glass transition temperature T g . Neutron reflectivity was used to measure isotopic interdiffusion of multilayer samples created by physical vap...
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| Published in: | The Journal of chemical physics 2006-05, Vol.124 (18), p.184501-184501-9 |
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| Main Authors: | , , , , , |
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| cites | cdi_FETCH-scitation_primary_10_1063_1_2191492Neutron_reflectivity3 |
| container_end_page | 184501-9 |
| container_issue | 18 |
| container_start_page | 184501 |
| container_title | The Journal of chemical physics |
| container_volume | 124 |
| creator | Swallen, Stephen F. Mapes, Marie K. Kim, Yong Seol McMahon, Robert J. Ediger, M. D. Satija, Sushil |
| description | The translational dynamics of the low molecular weight glass-former tris(naphthylbenzene) have been studied on the length scale of a few nanometers at the glass transition temperature
T
g
. Neutron reflectivity was used to measure isotopic interdiffusion of multilayer samples created by physical vapor deposition. Deposition with the substrate held at
T
g
−
6
K
allows observation of dynamics characterizing the equilibrium supercooled liquid. The diffusion coefficient measured at
q
=
0.03
Å
−
1
was determined to be
1
×
10
−
17
cm
2
∕
s
at
342
K
(
T
g
)
. The self-part of the intermediate scattering function
I
s
(
q
,
t
)
decays exponentially. Samples deposited well below
T
g
show a substantial thermal history effect during subsequent translational motion at
T
g
. |
| doi_str_mv | 10.1063/1.2191492 |
| format | article |
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T
g
. Neutron reflectivity was used to measure isotopic interdiffusion of multilayer samples created by physical vapor deposition. Deposition with the substrate held at
T
g
−
6
K
allows observation of dynamics characterizing the equilibrium supercooled liquid. The diffusion coefficient measured at
q
=
0.03
Å
−
1
was determined to be
1
×
10
−
17
cm
2
∕
s
at
342
K
(
T
g
)
. The self-part of the intermediate scattering function
I
s
(
q
,
t
)
decays exponentially. Samples deposited well below
T
g
show a substantial thermal history effect during subsequent translational motion at
T
g
.</description><identifier>ISSN: 0021-9606</identifier><identifier>EISSN: 1089-7690</identifier><identifier>DOI: 10.1063/1.2191492</identifier><identifier>CODEN: JCPSA6</identifier><publisher>American Institute of Physics</publisher><ispartof>The Journal of chemical physics, 2006-05, Vol.124 (18), p.184501-184501-9</ispartof><rights>2006 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-scitation_primary_10_1063_1_2191492Neutron_reflectivity3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,782,784,795,27924,27925</link.rule.ids></links><search><creatorcontrib>Swallen, Stephen F.</creatorcontrib><creatorcontrib>Mapes, Marie K.</creatorcontrib><creatorcontrib>Kim, Yong Seol</creatorcontrib><creatorcontrib>McMahon, Robert J.</creatorcontrib><creatorcontrib>Ediger, M. D.</creatorcontrib><creatorcontrib>Satija, Sushil</creatorcontrib><title>Neutron reflectivity measurements of the translational motionof tris(naphthylbenzene) at the glass transition temperature</title><title>The Journal of chemical physics</title><description>The translational dynamics of the low molecular weight glass-former tris(naphthylbenzene) have been studied on the length scale of a few nanometers at the glass transition temperature
T
g
. Neutron reflectivity was used to measure isotopic interdiffusion of multilayer samples created by physical vapor deposition. Deposition with the substrate held at
T
g
−
6
K
allows observation of dynamics characterizing the equilibrium supercooled liquid. The diffusion coefficient measured at
q
=
0.03
Å
−
1
was determined to be
1
×
10
−
17
cm
2
∕
s
at
342
K
(
T
g
)
. The self-part of the intermediate scattering function
I
s
(
q
,
t
)
decays exponentially. Samples deposited well below
T
g
show a substantial thermal history effect during subsequent translational motion at
T
g
.</description><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNqlTztPxDAMjhBIlMfAP8gIQw-7d-qRhQWBmJjYI3NyaVCSVrEPqfx66NGBncmf5O9pzBXCCqFd3-KqQYcb1xyZCuHO1dvWwbGpABqsXQvtqTkT-QAA3DabykwvvNcyZFu4i7zT8Bl0solJ9oUTZxU7dFZ7tlooSyQNQ6Zo0zCD-VWCXGcae-2n-Mb5izPfWNKD5j2SyK8yzHyrnEYupD_mF-akoyh8udxzc__0-PrwXMsu6CHGjyUkKpNH8PM4j34Zt5T2f0uv_23wDUaRaZA</recordid><startdate>20060508</startdate><enddate>20060508</enddate><creator>Swallen, Stephen F.</creator><creator>Mapes, Marie K.</creator><creator>Kim, Yong Seol</creator><creator>McMahon, Robert J.</creator><creator>Ediger, M. D.</creator><creator>Satija, Sushil</creator><general>American Institute of Physics</general><scope/></search><sort><creationdate>20060508</creationdate><title>Neutron reflectivity measurements of the translational motionof tris(naphthylbenzene) at the glass transition temperature</title><author>Swallen, Stephen F. ; Mapes, Marie K. ; Kim, Yong Seol ; McMahon, Robert J. ; Ediger, M. D. ; Satija, Sushil</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-scitation_primary_10_1063_1_2191492Neutron_reflectivity3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><creationdate>2006</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Swallen, Stephen F.</creatorcontrib><creatorcontrib>Mapes, Marie K.</creatorcontrib><creatorcontrib>Kim, Yong Seol</creatorcontrib><creatorcontrib>McMahon, Robert J.</creatorcontrib><creatorcontrib>Ediger, M. D.</creatorcontrib><creatorcontrib>Satija, Sushil</creatorcontrib><jtitle>The Journal of chemical physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Swallen, Stephen F.</au><au>Mapes, Marie K.</au><au>Kim, Yong Seol</au><au>McMahon, Robert J.</au><au>Ediger, M. D.</au><au>Satija, Sushil</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neutron reflectivity measurements of the translational motionof tris(naphthylbenzene) at the glass transition temperature</atitle><jtitle>The Journal of chemical physics</jtitle><date>2006-05-08</date><risdate>2006</risdate><volume>124</volume><issue>18</issue><spage>184501</spage><epage>184501-9</epage><pages>184501-184501-9</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>The translational dynamics of the low molecular weight glass-former tris(naphthylbenzene) have been studied on the length scale of a few nanometers at the glass transition temperature
T
g
. Neutron reflectivity was used to measure isotopic interdiffusion of multilayer samples created by physical vapor deposition. Deposition with the substrate held at
T
g
−
6
K
allows observation of dynamics characterizing the equilibrium supercooled liquid. The diffusion coefficient measured at
q
=
0.03
Å
−
1
was determined to be
1
×
10
−
17
cm
2
∕
s
at
342
K
(
T
g
)
. The self-part of the intermediate scattering function
I
s
(
q
,
t
)
decays exponentially. Samples deposited well below
T
g
show a substantial thermal history effect during subsequent translational motion at
T
g
.</abstract><pub>American Institute of Physics</pub><doi>10.1063/1.2191492</doi></addata></record> |
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| identifier | ISSN: 0021-9606 |
| ispartof | The Journal of chemical physics, 2006-05, Vol.124 (18), p.184501-184501-9 |
| issn | 0021-9606 1089-7690 |
| language | |
| recordid | cdi_scitation_primary_10_1063_1_2191492Neutron_reflectivity |
| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP Journals (American Institute of Physics) |
| title | Neutron reflectivity measurements of the translational motionof tris(naphthylbenzene) at the glass transition temperature |
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