PMID- 32718601
OWN - NLM
STAT- MEDLINE
DCOM- 20210414
LR  - 20210414
IS  - 1879-1344 (Electronic)
IS  - 0144-8617 (Linking)
VI  - 245
DP  - 2020 Oct 1
TI  - Origin of vacuum-assisted chiral self-assembly of cellulose nanocrystals.
PG  - 116459
LID - S0144-8617(20)30633-0 [pii]
LID - 10.1016/j.carbpol.2020.116459 [doi]
AB  - To produce functional cellulose nanocrystal (CNC) films with desirable optical 
      and mechanical properties, it is critical to understand and control the chiral 
      self-assembly of CNCs during solvent removal. Here, the formation mechanism of 
      CNC chiral nematic liquid crystal phase during vacuum-assisted self-assembly 
      (VASA) was investigated. To elucidate the structural evolution of CNC 
      aggregations on filter paper, CNC suspensions were "frozen" at various filtration 
      stages in a polyacrylamide matrix. In addition, the flow rate of CNC suspension 
      was monitored in situ. We found that disordered-to-ordered CNC self-assembly 
      occurs at the interface between the filter paper and suspension over four stages. 
      Tactoids develop in the concentrated CNC suspension close to the filter paper, 
      which is also observed in evaporation-induced self-assembly (EISA) of CNC films. 
      However, compared to EISA, VASA promotes helical axes of CNC tactoids along the 
      flow-field direction, leading to faster liquid crystal formation with long-range 
      order via the nucleation growth.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Wang, Zhaolu
AU  - Wang Z
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Yuan, Yuan
AU  - Yuan Y
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Hu, Jian
AU  - Hu J
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Yang, Jiying
AU  - Yang J
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Feng, Fan
AU  - Feng F
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Yu, Yao
AU  - Yu Y
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China.
FAU - Liu, Ping
AU  - Liu P
AD  - Department of Chemical Engineering and Safety, Binzhou University, Binzhou 
      256603, China. Electronic address: lpzhr@163.com.
FAU - Men, Yongfeng
AU  - Men Y
AD  - State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of 
      Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
FAU - Zhang, Jianming
AU  - Zhang J
AD  - Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key 
      Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao 
      University of Science & Technology, Qingdao 266042, China. Electronic address: 
      zjm@qust.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20200528
PL  - England
TA  - Carbohydr Polym
JT  - Carbohydrate polymers
JID - 8307156
RN  - 0 (Gels)
RN  - 0 (Solvents)
RN  - 0 (Suspensions)
RN  - 059QF0KO0R (Water)
RN  - 9004-34-6 (Cellulose)
SB  - IM
MH  - Anisotropy
MH  - Cellulose/*chemistry
MH  - Cotton Fiber
MH  - Gels/chemistry
MH  - Hydrogen-Ion Concentration
MH  - Hydrolysis
MH  - Liquid Crystals/*chemistry
MH  - Nanoparticles/*chemistry
MH  - Solvents/chemistry
MH  - Suspensions/chemistry
MH  - Vacuum
MH  - Viscosity
MH  - Water/chemistry
OTO - NOTNLM
OT  - Cellulose nanocrystals
OT  - Chiral nematic phase
OT  - Liquid crystals
OT  - Self-assembly
OT  - Structural color
EDAT- 2020/07/29 06:00
MHDA- 2021/04/15 06:00
CRDT- 2020/07/29 06:00
PHST- 2020/02/14 00:00 [received]
PHST- 2020/04/19 00:00 [revised]
PHST- 2020/05/14 00:00 [accepted]
PHST- 2020/07/29 06:00 [entrez]
PHST- 2020/07/29 06:00 [pubmed]
PHST- 2021/04/15 06:00 [medline]
AID - S0144-8617(20)30633-0 [pii]
AID - 10.1016/j.carbpol.2020.116459 [doi]
PST - ppublish
SO  - Carbohydr Polym. 2020 Oct 1;245:116459. doi: 10.1016/j.carbpol.2020.116459. Epub 
      2020 May 28.