Zobrazeno 1 - 10
of 13
pro vyhledávání: '"T. E. Helminiak"'
Autor:
T. E. Helminiak, Guy C. Berry
Publikováno v:
Journal of Polymer Science: Polymer Symposia. 65:107-123
Studies on the properties of the double-chain ladder polymer of cis-syndiotactic poly(phenylsilsesquioxane) (PPSQ) in dilute and concentrated solutions are reported. Data on the intrinsic viscosity [η], the second virial coefficient A2, and the mean
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92c99df269ccabbbb1815d23f7edf539
https://doi.org/10.1002/polc.5070650113
https://doi.org/10.1002/polc.5070650113
Publikováno v:
Journal of Macromolecular Science, Part B. 22:231-257
Phase relationships in concentrated solution and in the bulk of a solvent/rigid-rod/flexible-coil system were investigated. The solvent was a mixture of two strong acids. The rigid-rod polymer was poly-p-phenylenebenzobisthiazole (PBT). The flexible-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09cb28d1bb2624da011fa465fc88ca49
https://doi.org/10.1080/00222348308215502
https://doi.org/10.1080/00222348308215502
Publikováno v:
Journal of Polymer Science. 57:471-482
Model branched polymers have been prepared by the reaction of relatively monodisperse polystyryl lithium with silicon tetrachloride. The branched molecules have been carefully characterized by light scattering and osmotic pressure measurements. A stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3fb15ff9ecdab2f72b4d1b3212e793c
https://doi.org/10.1002/pol.1962.1205716537
https://doi.org/10.1002/pol.1962.1205716537
Publikováno v:
Journal of Polymer Science. 44:539-545
The osmotic pressures of six well-fractionated samples of polyvinylpyrrolidone were measured in aqueous solution in a Lucite-block type osmometer. The molecular weights and interaction parameters were determined by employing the theory proposed by Ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2f489a3713872ef9dfa41b6c07cbc51
https://doi.org/10.1002/pol.1960.1204414425
https://doi.org/10.1002/pol.1960.1204414425
Autor:
L. C. Cerny, T. E. Helminiak
Publikováno v:
Journal of Polymer Science. 31:230-234
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adf16071a7ddacce124fa92e8b9b3a6a
https://doi.org/10.1002/pol.1958.1203112243
https://doi.org/10.1002/pol.1958.1203112243
Autor:
W. B. Jones, T. E. Helminiak
Publikováno v:
Adhesive Chemistry ISBN: 9781461294818
The fracture behavior of a family of polyphenylquinoxaline thermosets has been experimentally investigated, along with a polyphenylquinoxaline thermoplastic. Engineering fracture methods were adapted and applied to small quantities of materials. Mini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0728a4b2db439de601d02c9b5537aec
https://doi.org/10.1007/978-1-4613-2435-5_30
https://doi.org/10.1007/978-1-4613-2435-5_30
This report identifies a new approach to process thick molecular composites by non-melt consolidation. The process involves the coagulation of the PBT/Nylon 66 dope from methane sulfonic acid into a block of required dimensions using a specially desi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdf8092762c4b8d53028ee1bc93f0caa
https://doi.org/10.21236/ada194113
https://doi.org/10.21236/ada194113
Publikováno v:
ACS Symposium Series ISBN: 9780841207318
Cyclopolymerization and Polymers with Chain-Ring Structures
Cyclopolymerization and Polymers with Chain-Ring Structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acf0368a3552c15a6defd144225a1395
https://doi.org/10.1021/bk-1982-0195.ch018
https://doi.org/10.1021/bk-1982-0195.ch018
Publikováno v:
ACS Symposium Series ISBN: 9780841207318
Cyclopolymerization and Polymers with Chain-Ring Structures
Cyclopolymerization and Polymers with Chain-Ring Structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99cbf5ac5de40eceff356746c9abb650
https://doi.org/10.1021/bk-1982-0195.ch019
https://doi.org/10.1021/bk-1982-0195.ch019
Autor:
T. E. Helminiak, Wen-Fang Hwang
Publikováno v:
MRS Proceedings. 134
Recently, the concept of rigid rod molecular composites, originally demonstrated in the Air Force Materials Laboratory, has attracted wide spread attention in the global research community in the hope of creating a new generation of materials for str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f4f206b3f923dc4d42a935294dbbd09
https://doi.org/10.1557/proc-134-507
https://doi.org/10.1557/proc-134-507