Blends of PS-PMMA Diblock Copolymers with a Directionally Hydrogen Bonding Polymer Additive

Spacer‐length‐dependent association in polymers with multiple‐hydrogen‐bonded end groups

“…[1][2][3][4] Theoretical work has shown that the domain size and morphology of the phase-separated structures critically depend on the strength of the interpolymer noncovalent interactions. [5][6][7][8][9][10] To achieve these attractive enthalpic interpolymer interactions, end-functionalized homopolymers have been prepared with functional groups capable of noncovalent assembly such as hydrogen bonding, [11][12][13][14][15][16][17][18][19][20] ionic, 21 transition-metal, 22,23 host-guest, [24][25][26] and fluorophilic 27 interactions. Typically, these functional groups are attached to a homopolymer via a short, aliphatic spacer.…”

“…KEYWORDS: atom transfer radical polymerization (ATRP); diffusion-ordered spectroscopy; hydrogen bonding; supramolecular diblock copolymers INTRODUCTION The combination of supramolecular chemistry and the controlled phase separation of diblock copolymers can result in a wealth of nanoscale morphologies with applications ranging from semiconductor integrated circuit design to the development of subnanometer porous films for separation processes. [1][2][3][4] Theoretical work has shown that the domain size and morphology of the phase-separated structures critically depend on the strength of the interpolymer noncovalent interactions.5-10 To achieve these attractive enthalpic interpolymer interactions, end-functionalized homopolymers have been prepared with functional groups capable of noncovalent assembly such as hydrogen bonding, [11][12][13][14][15][16][17][18][19][20] ionic, 21 transition-metal, 22,23 host-guest, 24-26 and fluorophilic 27 interactions. Typically, these functional groups are attached to a homopolymer via a short, aliphatic spacer.…”

“…5-10 To achieve these attractive enthalpic interpolymer interactions, end-functionalized homopolymers have been prepared with functional groups capable of noncovalent assembly such as hydrogen bonding, [11][12][13][14][15][16][17][18][19][20] ionic, 21 transition-metal, 22,23 host-guest, 24-26 and fluorophilic 27 interactions. Typically, these functional groups are attached to a homopolymer via a short, aliphatic spacer.…”

Synthesis of Multicompartment Nanoparticles of ABC Triblock Copolymers through Intramolecular Interactions of Two Solvophilic Blocks

“…It is known that desirable interaction between two different polymers may result in polymer–polymer complexes. − ,− Intermolecular complexation between two polymers driven by electrostatic interactions or hydrogen bonding can lead to either associative phase separation or segregative phase separation, − ,− which is represented by a phase being enriched in both components or each phase being enriched in one polymer, respectively. As an important intermolecular interaction, hydrogen bonding plays a key role to form phase-separated structure of block copolymers, ,,− and much effort has been made to tune the morphologies of block copolymer by addition of complex forming metal salts, − homopolymers, − and small molecules. − Up to now, intermolecular complexation between two polymers or between a polymer and a small molecule is usually studied. ,,− …”

Synthesis, self‐assembly and reversible healing of supramolecular perfluoropolyethers

“…While a number of different systems to create supramolecular polymers have been explored, the seminal work of Meijer et al, demonstrated the use of quadruple donor–acceptor moieties based on 2‐ureido‐4[1 H ]‐pyrimidone (UPy) to be a versatile hydrogen bonding motif to promote supramolecular polymerization . These supramolecular polymeric materials frequently display physical properties such as high solution viscosity and mechanical strength that are more akin to conventional high molecular weight covalent polymers.…”