Results 251 to 260 of about 149,499 (333)

A Polystyrene−Oligothiophene−Polystyrene Triblock Copolymer

Journal of the American Chemical Society, 1998
A well-defined triblock copolymer is synthesized by using a strategy in which the a-coupling of 11 thiophene rings of the middle block and the monodispersity (d.p. = 30 and 1.1) of the two polystyrene outer blocks is ensured. Monofunctional polystyrene is modified with an a-terthiophene unit and two of these units are coupled in a double Stetter ...
Hempenius, M., Langeveld-Voss, B., Haare, J., Janssen, R., Sheiko, S., Spatz, J., Möller, M., Meijer, E.   +7 more
openaire   +3 more sources

BN Polystyrenes: Emerging Optical Materials and Versatile Intermediates.

Journal of Organic Chemistry, 2019
BN polystyrenes are an emerging class of polyolefins functionalized with aromatic side chains in which at least one CC bond is replaced with a BN bond. This class of structures exhibits unusual photophysical properties relative to organic polymers.
H. L. van de Wouw, Rebekka S. Klausen
semanticscholar   +1 more source

Model polystyrene networks

Faraday Discussions of the Chemical Society, 1974
Abstract Model polystyrene networks have been prepared, at different concentrations in an inert solvent, in such a way that the number of crosslinks is accurately known, and the topology of the network can be varied in a controlled way. The contribution of various network defects to the modulus of the network has been examined.
G. Allen, P. A. Holmes, D. J. Walsh
openaire   +1 more source

Miscibility of regular multibranched polystyrene with linear polystyrene

Polymer, 1994
Differential scanning calorimetry (d.s.c.) measurements on the 50/50 blends of well-defined multibranched polystyrenes and linear polystyrenes were carried out to investigate the miscibility between polymer components having the same constitutional repeating units but different molecular architectures.
Yasuhisa Tsukahara, Jun Inoue, Yoshinori Ohta, Shinzo Kohjiya   +3 more
openaire   +1 more source

Polystyrene Overestimated

Science, 2010
David J, Tonjes, R L, Swanson
openaire   +2 more sources

Hot Stage Microscopy of Polystyrene and Polystyrene Derivatives

1987
Studies of particulate polystyrene and atactic PMMA by Ueberreiter and Orthmann1 using a direct-recording mechanooptical instrument revealed an optically detectable softening process occurring above the glass transition temperature. In their apparatus, a powdered polymer sample was sandwiched between a stationary glass plate and a loaded floating glass
Lisa R. Denny, Raymond F. Boyer
openaire   +1 more source

Linear and Extensional Rheology of Model Branched Polystyrenes: From Loosely Grafted Combs to Bottlebrushes

, 2017
M. Abbasi, Lorenz Faust, Kamran Riazi, M. Wilhelm   +3 more
semanticscholar   +1 more source

Novel strategies for the synthesis of hydroxylated and carboxylated polystyrenes

Journal of polymer research, 2018
R. Mohammad-Rezaei, B. Massoumi, M. Abbasian, M. Jaymand   +3 more
semanticscholar   +1 more source

Application of Hypercrosslinked Polystyrenes to the Preconcentration and Separation of Organic Compounds and Ions of Elements

Journal of Analytical Chemistry, 2018
S. Dmitrienko, T. Tikhomirova, V. Apyari, V. V. Tolmacheva, E. V. Kochuk, Y. Zolotov   +5 more
semanticscholar   +1 more source

Self-Assembly of Patterned Porous Films from Cyclic Polystyrenes via the Breath Figure Method

, 2018
Bai-Heng Wu, Lian-Wei Wu, K. Gao, Sen-He Chen, Zhi-Kang Xu, Ling-Shu Wan   +5 more
semanticscholar   +1 more source