PMID- 37534616
OWN - NLM
STAT- MEDLINE
DCOM- 20231106
LR  - 20231106
IS  - 1521-3927 (Electronic)
IS  - 1022-1336 (Linking)
VI  - 44
IP  - 21
DP  - 2023 Nov
TI  - Azobenzene-Containing Liquid Crystalline Twisted Ribbons via 
      Polymerization-Induced Hierarchical Self-Assembly.
PG  - e2300361
LID - 10.1002/marc.202300361 [doi]
AB  - Polymerization-induced self-assembly incorporating liquid crystallization, as a 
      polymerization-induced hierarchical self-assembly (PIHSA) method to produce 
      polymeric particles with anisotropic morphologies facilely and efficiently, has 
      drawn wide attention recently. However, the means of regulating the morphologies 
      of liquid crystalline (LC) polymer assemblies still need to be explored. Herein, 
      a route is presented to fabricate the twisted ribbons via PIHSA containing 
      azobenzene based on poor reversible addition-fragmentation chain transfer (RAFT) 
      control, called poorly controlled PIHSA. 
      Cyano-4-(dodecylsulfanylthiocarbonyl)sulfanyl pentanoic acid-2-(2-pyridyldithio) 
      ethyl ester is used as the RAFT agent with poor controllability, and the 
      morphological evolution from ribbons to twisted ribbons can be observed in the 
      corresponding PIHSA system. The formation mechanism of the twisted ribbons is 
      studied systematically and the broad molecular weight distribution is considered 
      to be the decisive factor. Moreover, the supramolecular chirality induced by 
      symmetry breaking is also related to the twist of the ribbons. This study 
      enriches the methods of controlling the morphologies of LC polymer particles and 
      is helpful for further clarifying the mechanism of PIHSA.
CI  - (c) 2023 Wiley-VCH GmbH.
FAU - Deng, Zichao
AU  - Deng Z
AD  - School of Materials Science and Engineering, Beihang University, Beijing, 100191, 
      China.
FAU - Sun, Yalan
AU  - Sun Y
AD  - School of Materials Science and Engineering, Beihang University, Beijing, 100191, 
      China.
FAU - Guan, Song
AU  - Guan S
AD  - School of Materials Science and Engineering, Beihang University, Beijing, 100191, 
      China.
FAU - Chen, Aihua
AU  - Chen A
AUID- ORCID: 0000-0002-9609-988X
AD  - School of Materials Science and Engineering, Beihang University, Beijing, 100191, 
      China.
LA  - eng
GR  - 52173193/National Natural Science Foundation of China/
GR  - 8092201050/Equipment Pre-Research Foundation of China's Central Military 
      Commission/
GR  - 2202024/Natural Science Foundation of Beijing Municipality/
PT  - Journal Article
DEP - 20230813
PL  - Germany
TA  - Macromol Rapid Commun
JT  - Macromolecular rapid communications
JID - 9888239
RN  - F0U1H6UG5C (azobenzene)
RN  - 0 (Polymers)
RN  - 0 (Azo Compounds)
SB  - IM
MH  - Polymerization
MH  - *Polymers/chemistry
MH  - *Azo Compounds
MH  - Crystallization
OTO - NOTNLM
OT  - RAFT agent end groups
OT  - azobenzene
OT  - liquid crystallization
OT  - polymerization-induced self-assembly
OT  - twisted ribbons
EDAT- 2023/08/03 13:08
MHDA- 2023/11/06 06:43
CRDT- 2023/08/03 06:46
PHST- 2023/08/01 00:00 [revised]
PHST- 2023/06/20 00:00 [received]
PHST- 2023/11/06 06:43 [medline]
PHST- 2023/08/03 13:08 [pubmed]
PHST- 2023/08/03 06:46 [entrez]
AID - 10.1002/marc.202300361 [doi]
PST - ppublish
SO  - Macromol Rapid Commun. 2023 Nov;44(21):e2300361. doi: 10.1002/marc.202300361. 
      Epub 2023 Aug 13.