PMID- 32890559 OWN - NLM STAT- MEDLINE DCOM- 20210402 LR - 20210402 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) VI - 164 DP - 2020 Dec 1 TI - Novel bacterial cellulose nanocrystals/polyether block amide microporous membranes as separators for lithium-ion batteries. PG - 3580-3588 LID - S0141-8130(20)34315-4 [pii] LID - 10.1016/j.ijbiomac.2020.08.234 [doi] AB - Bacterial cellulose nanocrystals (BCNCs) were extracted from nata de coco waste and underwent sulphuric acid (H(2)SO(4)) hydrolysis for use as a reinforcement giving thermal and dimensional stability to polyether block amide (PEBAX) as a polymer matrix for the fabrication of BCNCs/PEBAX microporous membranes. The H(2)SO(4)-hydrolysis of BCNCs yielded rod-like/needle-like BCNCs and negatively charged surfaces, resulting from the generated surface sulfate groups on the bacterial cellulose (BC), which may be competent for numerous applications. The non-solvent induced phase separating (NIPS) and subsequent film casting methods were used to prepare the BCNCs/PEBAX microporous membranes. The obtained films were characterized with regards to their structure in terms of the content of crystalline phases, as well as their ionic transport and performance at elevated temperatures. The presence of the BCNCs fillers resulted in a good thermal and dimensional stability up to 150 degrees C and correlated with no membrane shrinkage. For NIPS membranes, the formation of a rigid cellulosic network within the matrix was emphasized and attributed to the thermal stabilization at temperatures above the melting temperature. In addition, the wettability, ionic conductivity, and thermal stability were investigated in BCNCs/PEBAX membranes filled with different amounts of BCNCs. Thus, the BCNCs/PEBAX membranes derived via NIPS had a remarkably good ionic conductivity, within the range of 10(-2)-10(-3) S/cm, with up to 56.8% porosity. Such porous membranes are considered as an important and interesting candidate for the replacement of the commercial polyolefin-based microporous separator in lithium-ion batteries due to their superior electrochemical performances and the observed reinforcement effect. CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Ajkidkarn, Phranot AU - Ajkidkarn P AD - The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand. FAU - Manuspiya, Hathaikarn AU - Manuspiya H AD - The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address: hathaikarn.m@chula.ac.th. LA - eng PT - Journal Article DEP - 20200902 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 RN - 0 (Amides) RN - 0 (Ions) RN - 0 (Polyenes) RN - 0 (Polyesters) RN - 0 (Sulfuric Acids) RN - 83136-87-2 (PL 732) RN - 9004-34-6 (Cellulose) RN - 9FN79X2M3F (Lithium) RN - O40UQP6WCF (sulfuric acid) SB - IM MH - Amides/chemistry MH - Bacteria/*chemistry MH - Cellulose/*chemistry MH - Electric Conductivity MH - *Electric Power Supplies MH - Ions/chemistry MH - Lithium/chemistry MH - Nanoparticles/*chemistry MH - Polyenes MH - Polyesters/chemistry MH - Porosity MH - Sulfuric Acids/chemistry MH - Temperature OTO - NOTNLM OT - Bacterial cellulose OT - Ionic conductivity OT - Lithium-ion battery OT - Nanocrystals OT - Nylon-based polymer OT - Polyether block amide OT - Separator membranes EDAT- 2020/09/06 06:00 MHDA- 2021/04/07 06:00 CRDT- 2020/09/05 20:07 PHST- 2020/06/17 00:00 [received] PHST- 2020/08/23 00:00 [revised] PHST- 2020/08/28 00:00 [accepted] PHST- 2020/09/06 06:00 [pubmed] PHST- 2021/04/07 06:00 [medline] PHST- 2020/09/05 20:07 [entrez] AID - S0141-8130(20)34315-4 [pii] AID - 10.1016/j.ijbiomac.2020.08.234 [doi] PST - ppublish SO - Int J Biol Macromol. 2020 Dec 1;164:3580-3588. doi: 10.1016/j.ijbiomac.2020.08.234. Epub 2020 Sep 2.