Intramolecular structure and dynamics in computationally designed peptide-based polymers displaying tunable chain stiffness,Physical Review Materials

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Intramolecular structure and dynamics in computationally designed peptide-based polymers displaying tunable chain stiffness
Physical Review Materials ( IF 3.1 ) Pub Date : 2021-09-07 , DOI: 10.1103/physrevmaterials.5.095601
Nairiti J. Sinha _{1,

2} , Yi Shi ₁ , Yao Tang ₁ , Christopher J. Kloxin _{1,

3} , Jeffery G. Saven ₄ , Antonio Faraone ₂ , Grethe V. Jensen _{2,

3} , Darrin J. Pochan ₁

Affiliation

Polymers assembled using computationally designed coiled coil bundlemers display tunable stiffness via control of interbundlemer covalent connectivity as confirmed using small-angle neutron scattering. Neutron spin echo spectroscopy reveals that rigid rod polymers show a decay rate

Γ \sim Q^{2}

(

Q

is the scattering vector) expected of straight cylinders. Semirigid polymers assembled using bundlemers linked via 4-armed organic linker show flexible segmental dynamics at mid-