Precise Pentamers with Diverse Monomer Sequences and Their Thermal Properties

Liu, Ruizhe; Zhang, Lei; Guo, Kunkun; Xu, Jiangtao

doi:10.1007/s10118-022-2689-1

Chin J Polym Sci

2022

DOI: 10.1007/s10118-022-2689-1

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Precise Pentamers with Diverse Monomer Sequences and Their Thermal Properties

Ruizhe Liu

Lei Zhang

Kunkun Guo

et al.

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Cited by 5 publications

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“…[5,10] Studies have shown that macromolecularly-defined oligomers or polymers present a promising avenue for investigating the effect of macromolecular structure (for example chain length or monomer positioning) on physical, thermal, and optical properties of bulk materials. [11][12][13][14][15] It has been shown that this level of molecular control allows for tuning of material properties. However, despite this, sequence-defined macromolecules as materials have been relatively unexplored.…”

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Macromolecular Engineering: From Precise Macromolecular Inks to 3D Printed Microstructures

Catt

Hackner

Spatz

et al. 2023

Small

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Macromolecules with complex, defined structures exist in nature but rarely is this degree of control afforded in synthetic macromolecules. Sequence‐defined approaches provide a solution for precise control of the primary macromolecular structure. Despite a growing interest, very few examples for applications of sequence‐defined macromolecules exist. In particular, the use of sequence‐defined macromolecules as printable materials remains unexplored. Herein, the rational design of precise macromolecular inks for 3D microprinting is investigated for the first time. Specifically, three printable oligomers are synthesized, consisting of eight units, either crosslinkable (C) or non‐functional (B) with varied sequence (BCBCBCBC, alternating; BBCCCBB, triblock; and BBBBCCCC, block). The oligomers are printed using two‐photon laser printing and characterized. It is clearly demonstrated that the macromolecular sequence, specifically the positioning of the crosslinkable group, plays a critical role in both the printability and final properties of the printed material. Thus, through precise design and printability of sequence‐defined macromolecules, an exciting avenue for the next generation of functional materials for 3D printing is created.

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confidence: 99%

Macromolecular Engineering: From Precise Macromolecular Inks to 3D Printed Microstructures

Catt

Hackner

Spatz

et al. 2023

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Sequence of Monomers and Position of Stereocenters Matter for Thermal Properties of Stereocontrolled Oligourethanes

Forysiak,

Lizak,

Szweda

2024

ChemPhysChem

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Polyurethanes are commodity materials used for multiple applications. In recent years, a new category of polyurethane material has emerged, characterized by the lack of polymer molar mass distribution, control of the monomer arrangement in the chain, and even full stereocontrol. Various multistep synthesis strategies have been developed to fabricate sequence‐defined polyurethanes. However, synthesizing stereocontrolled polyurethanes with a controlled sequence is still a challenge. Polyurethanes with structural precision, as represented by biopolymers, i.e. proteins or nucleic acids, have opened new application directions for these groups of materials. It has been shown that polyurethanes can be used as biomimetics, information carriers, molecular tags, and materials with strictly controlled properties. Precise synthesis of macromolecules allows us to fine‐tune the properties of polymers to specific needs. Therefore, it is essential to collect information on the sequence‐structure relationship of polymers. In our work, we present synthetic pathways to make sequence and stereo‐defined oligourethanes. We demonstrate that structural details, i.e., the monomer sequences and position of the stereocenter, have a tremendous effect on the thermal properties of model oligourethanes. We show that the introduction of chirality by constitutional isomerization can be used to program the thermal characteristics of polymers, which are key features for material applications.

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Engineering precise sequence-defined polymers for advanced functions

Shi

Deng

Hou

et al. 2023

Progress in Polymer Science

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Precise Pentamers with Diverse Monomer Sequences and Their Thermal Properties

Cited by 5 publications

References 48 publications

Macromolecular Engineering: From Precise Macromolecular Inks to 3D Printed Microstructures

Macromolecular Engineering: From Precise Macromolecular Inks to 3D Printed Microstructures

Sequence of Monomers and Position of Stereocenters Matter for Thermal Properties of Stereocontrolled Oligourethanes

Engineering precise sequence-defined polymers for advanced functions

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