Zobrazeno 1 - 10
of 116
pro vyhledávání: '"David J. Lohse"'
Autor:
David J. Lohse
Publikováno v:
Polymer Journal. 45:20-25
A method is described that can predict the miscibility of the great majority of polyolefins based just on their chemical architecture. The miscibility of polyolefins is shown to be essentially controlled by their solubility parameters, d, which in tu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc981079f0453611c1a74777592b447c
https://doi.org/10.1038/pj.2012.191
https://doi.org/10.1038/pj.2012.191
Autor:
Ramnath Ramachandran, Alexander I. Norman, Gregory Beaucage, Nikolaos Hadjichristidis, David J. Lohse, Thomas T. Sun, Andy H. Tsou, Durgesh K. Rai
Publikováno v:
Macromolecules. 45:1056-1061
The versatility of a novel scaling approach in quantifying the structure of model well-defined 3-arm star polyethylene molecules is presented. Many commercial polyethylenes have long side branches, and the nature and quantity of these branches varies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b55bdc50918c293f73c08657720e7d32
https://doi.org/10.1021/ma2021002
https://doi.org/10.1021/ma2021002
Publikováno v:
Macromolecules. 44:6836-6848
Two-dimensional (2D) correlation analysis is applied to synchrotron X-ray scattering data to characterize morphological regimes during nonisothermal crystallization of a model ethylene copolymer (hydrogenated polybutadiene, HPBD). The 2D correlation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0158bab017a6a1ee2c1375721d2ca1cd
https://doi.org/10.1021/ma200774u
https://doi.org/10.1021/ma200774u
Autor:
Marinos Pitsikalis, Vasilios Kotzabasakis, Nikos Hadjichristidis, David J. Lohse, Stylianos Mourmouris
Publikováno v:
Macromolecules. 44:1952-1968
Herein we describe the synthesis of block and graft copolymers made from several higher α-olefins, and in some cases styrene and methyl methacrylate, through the use of metallocene catalysts as wel...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24dff3aac526f1275e19cdf174bda73c
https://doi.org/10.1021/ma102874y
https://doi.org/10.1021/ma102874y
Autor:
Nikos Hadjichristidis, Konstantinos Kostakis, Vasilios Kotzabasakis, Marinos Pitsikalis, David J. Lohse, Thomas Mavromoustakos, Constantinos Potamitis
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 47:4314-4325
The Cs-symmetry hafnium metallocene ((p-Et3Si)C6H4)2C(2,7-di-tert-BuFlu) (C5H4)Hf(CH3)2 and tetrakis(pentafluorophenyl) borate dimethylanilinium salt ((B(C6F5)4) � (Me2NHPh) þ ) were used as the catalytic system for the polymerization of higher a-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::334f93db5944a3c23b9ce441ea49e81c
https://doi.org/10.1002/pola.23483
https://doi.org/10.1002/pola.23483
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 47:2597-2607
Two methodologies, based on living star polymers and anionic polymerization high vacuum techniques, were used for the synthesis of exact comb polybutadienes (PBds) with two (C-2 or H-type) and three identical branches (symmetric, sC-3, H-type with an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930d1709debea004baf4e391c33ef9a8
https://doi.org/10.1002/pola.23345
https://doi.org/10.1002/pola.23345
Autor:
Nikos Hadjichristidis, Steven P. Rucker, Jung Hun Lee, David J. Lohse, Pamela J. Wright, Paraskevi Driva
Publikováno v:
Macromolecules. 42:1392-1399
The stress relaxation dynamics of entangled polyisoprene comb polymers were investigated, specifically under nonlinear step deformations, in order to identify the damping mechanism characteristic o...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37ff3738810d26ed22a0ac397c1fd61f
https://doi.org/10.1021/ma8022662
https://doi.org/10.1021/ma8022662
Autor:
David J. Lohse, Marinos Pitsikalis, Vasilios Kotzabasakis, Nikos Hadjichristidis, Nikolaos Petzetakis
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 47:876-886
Statistical copolymers of tetradecene-1 and octene-1 with 1-tert-butyl-dimethylsilyloxy-10-undecene were synthesized by metallocene catalyzed copolymerization. The C s -symmetry hafnium metallocene [(p-Et 3 Si)Ph] 2 C(2,7-di-tert-BuFlu) (Cp)Hf(CH 3 )
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b57afeb1d1d0cefba8c50cc5ed20cdf4
https://doi.org/10.1002/pola.23202
https://doi.org/10.1002/pola.23202
Autor:
Paraskevi Driva, Hermis Iatrou, David J. Lohse, Nikos Hadjichristidis, Jung Hun Lee, Katerina Orfanou
Publikováno v:
Macromolecules. 41:9165-9178
The stress relaxation dynamics of a series of second and third generation dendritic star polymers have been investigated experimentally in the linear regime with small amplitude oscillatory shear a...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::812c9133f3e87fc5820f134a451f5a7b
https://doi.org/10.1021/ma801429k
https://doi.org/10.1021/ma801429k
Publikováno v:
European Polymer Journal. 44:376-391
The aim of this work is to describe a method whereby low levels of long chain branching, LCB, can be quantified on a relative basis for whole, unfractionated, and essentially linear ethylene/α-olefin copolymers. The method is based on a well establi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93c279d2ff9bf95f2fa20405322d16dc
https://doi.org/10.1016/j.eurpolymj.2007.10.030
https://doi.org/10.1016/j.eurpolymj.2007.10.030