Amphiphilic Random Copolymers with Hydrophobic/Hydrogen-Bonding Urea Pendants: Self-Folding Polymers in Aqueous and Organic Media

2016 ◽  
Vol 49 (20) ◽  
pp. 7917-7927 ◽  
Author(s):  
Kazuma Matsumoto ◽  
Takaya Terashima ◽  
Takanori Sugita ◽  
Mikihito Takenaka ◽  
Mitsuo Sawamoto
Keyword(s):  
Hydrogen Bonding ◽  
Random Copolymers ◽  
Organic Media

The Role of Polymer Architecture in Strengthening Polymer−Polymer Interfaces:  A Comparison of Graft, Block, and Random Copolymers Containing Hydrogen-Bonding Moieties

1998 ◽  
Vol 31 (4) ◽  
pp. 1292-1304 ◽  
Author(s):  
Brian D. Edgecombe ◽  
Jason A. Stein ◽  
Jean M. J. Fréchet ◽  
Zhihua Xu ◽  
Edward J. Kramer
Keyword(s):  
Hydrogen Bonding ◽  
Random Copolymers ◽  
Polymer Interfaces ◽  
Polymer Architecture

Crystalline Metaphosphate Acid Salts: Synthesis in Organic Media, Structures, Hydrogen-Bonding Capability, and Implication of Superacidity

2016 ◽  
Vol 55 (12) ◽  
pp. 6178-6185 ◽  
Author(s):  
Khetpakorn Chakarawet ◽  
Ioana Knopf ◽  
Matthew Nava ◽  
Yanfeng Jiang ◽  
Julia M. Stauber ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Organic Media ◽  
Acid Salts

Role of Functional Groups in Strengthening Polymer−Polymer Interfaces:  Random Copolymers with Hydrogen-Bonding Functionalities

1998 ◽  
Vol 10 (4) ◽  
pp. 994-1002 ◽  
Author(s):  
Brian D. Edgecombe ◽  
Jean M. J. Fréchet ◽  
Zhihua Xu ◽  
Edward J. Kramer
Keyword(s):  
Hydrogen Bonding ◽  
Functional Groups ◽  
Random Copolymers ◽  
Polymer Interfaces

Single-chain crosslinked polymers via the transesterification of folded polymers: from efficient synthesis to crystallinity control

2020 ◽  
Vol 11 (32) ◽  
pp. 5181-5190 ◽  
Author(s):  
Daiki Ito ◽  
Yoshihiko Kimura ◽  
Mikihito Takenaka ◽  
Makoto Ouchi ◽  
Takaya Terashima
Keyword(s):  
Crystallization Behavior ◽  
Random Copolymers ◽  
Organic Media ◽  
Efficient Synthesis ◽  
Single Chain ◽  
Crosslinked Polymers

Herein we report efficient synthetic systems of single-chain crosslinked polymers via the intramolecular transesterification of folded random copolymers in organic media and the unique crystallization behavior of their crosslinked polymers.

Strengthening Polymer Phase Boundaries with Hydrogen-Bonding Random Copolymers†

1997 ◽  
Vol 30 (25) ◽  
pp. 7958-7963 ◽  
Author(s):  
Zhihua Xu ◽  
Edward J. Kramer ◽  
Brian D. Edgecombe ◽  
Jean M. J. Fréchet
Keyword(s):  
Hydrogen Bonding ◽  
Random Copolymers ◽  
Polymer Phase ◽  
Phase Boundaries

Spontaneous Formation of Artificial Vesicles in Organic Media through Hydrogen-Bonding Interactions

2013 ◽  
Vol 46 (4) ◽  
pp. 1591-1598 ◽  
Author(s):  
Sabareesh K. P. Velu ◽  
Minhao Yan ◽  
Kuo-Pi Tseng ◽  
Ken-Tsung Wong ◽  
Dario M. Bassani ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Organic Media ◽  
Spontaneous Formation ◽  
Hydrogen Bonding Interactions

Electron microscopy of crystalline structure in thermotropic random copolymers

1991 ◽  
Vol 49 ◽  
pp. 1054-1055
Author(s):  
Afzana Anwer ◽  
S. Eilidh Bedford ◽  
Richard J. Spontak ◽  
Alan H. Windle
Keyword(s):  
Electron Microscopy ◽  
Crystalline Structure ◽  
Liquid Crystalline ◽  
Elevated Temperatures ◽  
Random Copolymers ◽  
Molecular Characteristics ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Identical Monomer ◽  
Periodic Layer

Random copolyesters composed of wholly aromatic monomers such as p-oxybenzoate (B) and 2,6-oxynaphthoate (N) are known to exhibit liquid crystalline characteristics at elevated temperatures and over a broad composition range. Previous studies employing techniques such as X-ray diffractometry (XRD) and differential scanning calorimetry (DSC) have conclusively proven that these thermotropic copolymers can possess a significant crystalline fraction, depending on molecular characteristics and processing history, despite the fact that the copolymer chains possess random intramolecular sequencing. Consequently, the nature of the crystalline structure that develops when these materials are processed in their mesophases and subsequently annealed has recently received considerable attention. A model that has been consistent with all experimental observations involves the Non-Periodic Layer (NPL) crystallite, which occurs when identical monomer sequences enter into register between adjacent chains. The objective of this work is to employ electron microscopy to identify and characterize these crystallites.

Hydrogen bonding in liquid methanol at ambient conditions and at high pressure

2000 ◽  
Vol 98 (3) ◽  
pp. 125-134 ◽  
Author(s):  
T. Weitkamp, J. Neuefeind, H. E. Fisch
Keyword(s):  
High Pressure ◽  
Hydrogen Bonding ◽  
Ambient Conditions
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