There is provided a β-peptido sugar-copolymer having the structure of formula (I) as defined herein, or a stereoisomer, a tautomer, an N-oxide, a hydrate, a solvate, or a salt thereof, or a mixture of the same. There is provided a process to make the β-peptido sugar-copolymer as defined herein. There are further provided medical applications of the β-peptido sugar-copolymer as defined herein. In a preferred embodiment, a block-like copolymer poly(amido-D-glucose)-block-poly-β-(L)-homolysine (PDGu-b-PBLK) synthesized via anionic ring-opening polymerization (ROP) demonstrates an antimicrobial efficacy, an enhanced selectivity towards different bacteria, biocompatibility vs. mammalian cells and spontaneous assembly.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Provided are methods of producing polyamides from beta-lactones. The polyamides include bio-based polyamides that may be obtained, either in part or completely, from renewable sources.

Methods of producing a polyamide filaments and fibers are provided. The methods include providing a dual-terminated polyamide and spinning the dual-terminated polyamide at a speed of 3500 m/min to 8000 m/min to form a fiber. In one embodiment, the polyamide has an amine endgroup concentration of 25 mmol/kg to 40 mmol/kg and a carboxyl endgroup concentration of 18 mmol/kg to 50 mmol/kg. Fibers and yarns comprising polyamide filaments and fibers formed from the method are also disclosed.

Methods of producing a polyamide filaments and fibers are provided. The methods include providing a dual-terminated polyamide and spinning the dual-terminated polyamide at a speed of 3500 m/min to 8000 m/min to form a fiber. In one embodiment, the polyamide has an amine endgroup concentration of 25 mmol/kg to 40 mmol/kg and a carboxyl endgroup concentration of 18 mmol/kg to 50 mmol/kg. Fibers and yarns comprising polyamide filaments and fibers formed from the method are also disclosed.

There is provided a ?-peptido sugar-copolymer having the structure of formula (I) as defined herein, or a stereoisomer, a tautomer, an N-oxide, a hydrate, a solvate, or a salt thereof, or a mixture of the same. There is provided a process to make the ?-peptido sugar-copolymer as defined herein. There are further provided medical applications of the ?-peptido sugar-copolymer as defined herein. In a preferred embodiment, a block-like copolymer poly(amido-D-glucose)-block-poly-?-(L)-homolysine (PDGu-b-PBLK) synthesized via anionic ring-opening polymerization (ROP) demonstrates an antimicrobial efficacy, an enhanced selectivity towards different bacteria, biocompatibility vs. mammalian cells and spontaneous assembly.