Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R. Pixa"'
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 58:381-394
The organization of the hexagonal structure of some block copolymers has been obtained directly from the melt. We have pointed out the temperature and shear conditions which give a well-organized and oriented structure. In order to represent the visc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1432bad72085fe9852a6958e8fcfe62d
https://doi.org/10.1002/polc.5070580127
https://doi.org/10.1002/polc.5070580127
Publikováno v:
Journal of Applied Polymer Science. 60:1201-1208
To study how the properties of extruded medium-density polyethylene products are influenced by the microstructure, rodlike samples, whose morphology can be changed under appropriate processing conditions, were produced by extrusion. A special extrusi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::776b456afe5075d87cbeccc72f6dbf67
https://doi.org/10.1002/(sici)1097-4628(19960523)60:8<1201::aid-app13>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19960523)60:8<1201::aid-app13>3.0.co
Publikováno v:
Colloid and Polymer Science. 266:913-920
A new torsion dilatometer is presented which allows simultaneous measurement of shear deformation, twisting moment, volume variation and axial deformation (or normal force). It is intended to be utilized principally for studies of volume changes duri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77c82896aec8446f4d476235773f41d9
https://doi.org/10.1007/bf01410846
https://doi.org/10.1007/bf01410846
Publikováno v:
Polymer Composites. 9:125-130
A nondestructive method is proposed to analyze the internal stresses of a circular bilayered laminate glassresin. It is based on the measurement by optical interferometry of small deformations of the laminate under the influence of temperature, time,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a30dcdea99b2f983f0412fa26d71f7ed
https://doi.org/10.1002/pc.750090205
https://doi.org/10.1002/pc.750090205
Autor:
R. Pixa, R. Schirrer
Publikováno v:
International Journal of Fracture. 26:387-393
This paper shows the limits in using the Cranz-Schardin high speed camera for photographing catastrophic fracture in materials with strong photoelastic constants. There is a maximum permissible distance between the sample and the observation plane if
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a1be345fc0c4109abefd27bb36fb5b
https://doi.org/10.1007/bf00962973
https://doi.org/10.1007/bf00962973
Autor:
R. Pixa, R. Schirrer
Publikováno v:
Colloid and Polymer Science. 259:435-446
We applied Wiener's theory to calculate form birefringence dispersion of an oriented block copolymer from dispersion formulas of refractive indices of bulk polymers corresponding to the blocks forming the microdomains. The nearly perfect concordance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da60a99d175652ca6aacbef4e36f29fd
https://doi.org/10.1007/bf01524880
https://doi.org/10.1007/bf01524880
Autor:
R. Pixa, R. Schirrer
Publikováno v:
Colloid and Polymer Science. 258:802-806
In this study we have investigated some sets of experimental conditions leading to supramolecular orientation in a triblock copolymer with cylindrical structure. The shear modulus and viscosity of the polymer of the matrix are higher than those of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac0c7feaeb8679ad70537d81fc2ee140
https://doi.org/10.1007/bf01566234
https://doi.org/10.1007/bf01566234
Publikováno v:
Polymer Bulletin. 14
Physical aging behavior of polycarbonate samples has been studied by dynamic mechanical torsion tests near ambient temperature in the range of 0.01 to 100 rad/s. Aging effects have been measured either after heating above Tg and quenching, or after c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab5d9afd6bb6d3f2999dd6338cb04b5f
https://doi.org/10.1007/bf00254915
https://doi.org/10.1007/bf00254915
Publikováno v:
Polymer Bulletin. 16
Summary Volume recovery of polycarbonate samples has been investigated by dilatometric and density measurements near ambient temperature. The volume changes with time have been measured either after heating above Tg and quenching, or after cold drawi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d69d867119cb956ed3a0e6e7e10cd28d
https://doi.org/10.1007/bf00255013
https://doi.org/10.1007/bf00255013
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