Hydrolytically degradable Poly (β-amino ester) resins with tunable degradation for 3D printing by projection micro-stereolithography

التفاصيل البيبلوغرافية
العنوان: Hydrolytically degradable Poly (β-amino ester) resins with tunable degradation for 3D printing by projection micro-stereolithography
المؤلفون: Stephanie J. Bryant, Robert R. McLeod, Archish Muralidharan
المصدر: Adv Funct Mater
سنة النشر: 2023
مصطلحات موضوعية: Materials science, Projection micro-stereolithography, business.industry, 3D printing, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Article, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, law.invention, Biomaterials, Hydrolysis, Photopolymer, Chemical engineering, law, Electrochemistry, Degradation (geology), 0210 nano-technology, business, Stereolithography
الوصف: Applications of 3D printing that range from temporary medical devices to environmentally responsible manufacturing would benefit from printable resins that yield polymers with controllable material properties and degradation behavior. Towards this goal, poly(β-amino ester) (PBAE)-diacrylate resins were investigated due to the wide range of available chemistries and tunable material properties. PBAE-diacrylate resins were synthesized from hydrophilic and hydrophobic chemistries and with varying electron densities on the ester bond to provide control over degradation. Hydrophilic PBAE-diacrylates led to degradation behaviors characteristic of bulk degradation while hydrophobic PBAE-diacrylates led to degradation behaviors dominated initially by surface degradation and then transitioned to bulk degradation. Depending on chemistry, the crosslinked PBAE-polymers exhibited a range of degradation times under accelerated conditions, from complete mass loss in 90 min to minimal mass loss at 45 days. Patterned features with 55 μm resolution were achieved across all resins, but their fidelity was dependent on PBAE-diacrylate molecular weight, reactivity, and printing parameters. In summary, simple chemical modifications in the PBAE-diacrylate resins coupled with projection microstereolithography enables high resolution 3D printed parts with similar architectures and initial properties, but widely different degradation rates and behaviors.
تدمد: 1616-301X
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8885f0e1612c71c622b2016c4ca36fa4
https://pubmed.ncbi.nlm.nih.gov/35813039
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....8885f0e1612c71c622b2016c4ca36fa4
قاعدة البيانات: OpenAIRE