Synthesis of Flexible Polyamide Aerogels Cross-Linked with a Tri-Isocyanate

التفاصيل البيبلوغرافية
العنوان:	Synthesis of Flexible Polyamide Aerogels Cross-Linked with a Tri-Isocyanate
المؤلفون:	Daniel A. Scheiman, Haiquan Guo, Katherine J. Oosterbaan, Linda McCorkle, Baochau N. Nguyen
المصدر:	Gels, Vol 10, Iss 8, p 519 (2024)
بيانات النشر:	MDPI AG, 2024.
سنة النشر:	2024
المجموعة:	LCC:Science LCC:Chemistry LCC:Inorganic chemistry LCC:General. Including alchemy
مصطلحات موضوعية:	flexible polyamide aerogel, tri-isocyanate cross-linker, mesoporous, density vs. modulus, thermal stability, Science, Chemistry, QD1-999, Inorganic chemistry, QD146-197, General. Including alchemy, QD1-65
الوصف:	A new series of flexible polyamide (PA) aerogels was synthesized using terephthaloyl chloride (TPC), 2,2′-dimethylbenzidine (DMBZ) and cross-linked with an inexpensive, commercially available tri-isocyanate (Desmodur N3300A) at polymer concentrations of 6–8 wt.% total solids and repeating units, n, from 30 to 60. The cross-linked DMBZ-based polyamide aerogels obtained, after supercritically drying using liquid CO2, had shrinkages of 19–27% with densities ranging from 0.12 g/cm3 to 0.22 g/cm3, porosity and surface areas up to 91% and 309 m2/g, respectively, and modulus values ranging from 20.6 to 109 MPa. Evidence suggests that a higher flexibility could be achieved using DMBZ in the polyamide backbone with N3300A as a cross-linker, when compared to previously reported TPC-mPDA-BTC PA aerogels, N3300A-polyimide aerogels, and N3300-reinforced silica aerogels.
نوع الوثيقة:	article
وصف الملف:	electronic resource
اللغة:	English
تدمد:	2310-2861
Relation:	https://www.mdpi.com/2310-2861/10/8/519; https://doaj.org/toc/2310-2861
DOI:	10.3390/gels10080519
URL الوصول:	https://doaj.org/article/d9aa22c9fbd94e89b50c2d1fc0a8017b
رقم الانضمام:	edsdoj.9aa22c9fbd94e89b50c2d1fc0a8017b
قاعدة البيانات:	Directory of Open Access Journals

View record in DOAJ

Full Text Finder

الوصف
تدمد:	23102861
DOI:	10.3390/gels10080519