کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5201695 1502904 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Syntheses of rigid-rod but degradable biopolyamides from itaconic acid with aromatic diamines
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Syntheses of rigid-rod but degradable biopolyamides from itaconic acid with aromatic diamines
چکیده انگلیسی

Highly-thermostable but degradable polyamides have been synthesized by a polycondensation of bio-derived itaconic acid salts with aromatic diamines to form heterocyclic pyrrolidone ring in the polymer backbone. The molecular weight was greater than 33,600 g/mol. Glass transition temperatures, Tg, and 10% weight loss temperatures, T10, ranged 156-242 °C and 370-400 °C, respectively, which were higher than those of conventional bio-based plastics. However their processability was too low to process the fiber as specimens of mechanical tests. We then incorporated an appropriate amount of aliphatic moiety into the aromatic backbones to prepare the high-performance and processable polyamides with Tg over 115 °C and T10 over 355 °C. The processed fibers showed tensile strength and Young's modulus ranged 20-58 MPa and 0.2-2.3 GPa, respectively. The degradation behaviors inside soil and under ultraviolet-irradiation in water were additionally found.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 109, November 2014, Pages 367-372
نویسندگان
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