@Article{jrm.2022.018823,
AUTHOR = {Wenwen Guo, Wei Cai, Dong Wang, Junling Wang, Xiefei Zhu, Bin Fei},
TITLE = {Halogen-Free Flame Retarded Poly(Lactic Acid) with an Isosorbide-Derived Polyphosphonate},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {10},
YEAR = {2022},
NUMBER = {7},
PAGES = {1875--1888},
URL = {http://www.techscience.com/jrm/v10n7/46958},
ISSN = {2164-6341},
ABSTRACT = {Fabrication of flame retardants from renewable biomass has aroused extensive interest over the past decade. This
work reported a synthesis of isosorbide-derived polyphosphonate (PICPP) as an anti-flammable agent for poly
(lactic acid) (PLA). The presence of PICPP notably declined the storage modulus of PLA/PICPP owing to the
declined molecular weight of PLA catalyzed by the presence of PICPP. PLA and PLA/PICPP thermally degraded
in one stage under either air or nitrogen atmosphere. With increasing the amount of PICPP, the onset thermal
decomposition temperature of PLA/PICPP was decreased gradually, owing to the earlier decomposition of PICPP.
With only 10 wt% of PICPP, PLA/PICPP-10 achieved a high limiting oxygen index of 30.0% and UL-94 V-0 classification, manifesting that PICPP was an efficient anti-flammable agent for PLA. The inclusion of 15 wt% PICPP
also caused 33% and 16% decline in PHRR and THR of PLA, respectively. TG-IR results clarified that PLA/PICPP
produced the less typical pyrolysis products especially flammable carbonyls than PLA, which may account for the
suppressed PHRR and THR values of PLA/PICPP.},
DOI = {10.32604/jrm.2022.018823}
}