PMID- 27933844
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180718
LR  - 20180718
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 8
IP  - 47
DP  - 2016 Nov 30
TI  - Cellulose Nanocrystal/Poly(ethylene glycol) Composite as an Iridescent Coating on 
      Polymer Substrates: Structure-Color and Interface Adhesion.
PG  - 32565-32573
AB  - The broad utility as an environmentally friendly and colorful coating of 
      cellulose nanocrystal (CNC) was limited by its instability of coloration, 
      brittleness, and lack of adhesion to a hydrophobic surface. In the present work, 
      a neutral polymer, poly(ethylene glycol) (PEG) was introduced into CNC coatings 
      through evaporation-induced self-assembly (EISA) on polymer matrices. The 
      structure-color and mechanical properties of the composite coating or coating 
      film were characterized by UV-vis spectroscopy, polarized light microscopy (PLM), 
      scanning electron microscopy (SEM), wide-angle X-ray diffraction (WXRD), and 
      tensile tests. Results showed that the reflective wavelength of the iridescent 
      CNCs could be finely tuned by incorporation of PEG with varied loadings from 2.5 
      to 50 wt %, although the high loading content of PEG would produce some side 
      effects because of the severe microphase separation. Second, PEG played an 
      effective plasticizer to improve the ductility or flexibility of the CNC coating 
      or coating film. Furthermore, as a compatibilizer, PEG could effectively and 
      tremendously enhance the adhesion strength between CNCs and neutral polymer 
      matrices without destroying the chiral nematic mesophases of CNCs. 
      Environmentally friendly CNC/PEG composites with tunable iridescence, good 
      flexibility, and high bonding strength to hydrophobic polymer matrices are 
      expected to be promising candidates in the modern green paint industry.
FAU - Gu, Mingyue
AU  - Gu M
AD  - Collaborative Innovation Center of Atmospheric Environment and Equipment 
      Technology, Nanjing University of Information Science and Technology , Nanjing 
      210044, P. R. China.
FAU - Jiang, Chenyu
AU  - Jiang C
AD  - Collaborative Innovation Center of Atmospheric Environment and Equipment 
      Technology, Nanjing University of Information Science and Technology , Nanjing 
      210044, P. R. China.
FAU - Liu, Dagang
AU  - Liu D
AD  - Collaborative Innovation Center of Atmospheric Environment and Equipment 
      Technology, Nanjing University of Information Science and Technology , Nanjing 
      210044, P. R. China.
AD  - Department of Physics, University of Colorado , Boulder, Colorado 80309, United 
      States.
FAU - Prempeh, Nana
AU  - Prempeh N
AD  - Collaborative Innovation Center of Atmospheric Environment and Equipment 
      Technology, Nanjing University of Information Science and Technology , Nanjing 
      210044, P. R. China.
FAU - Smalyukh, Ivan I
AU  - Smalyukh II
AD  - Department of Physics, University of Colorado , Boulder, Colorado 80309, United 
      States.
LA  - eng
PT  - Journal Article
DEP - 20161118
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - cellulose nanocrystal
OT  - cholesteric liquid crystal
OT  - interface adhesion
OT  - iridescent coatings
OT  - poly(ethylene glycol)
OT  - polymer substrate
EDAT- 2016/12/10 06:00
MHDA- 2016/12/10 06:01
CRDT- 2016/12/10 06:00
PHST- 2016/12/10 06:00 [entrez]
PHST- 2016/12/10 06:00 [pubmed]
PHST- 2016/12/10 06:01 [medline]
AID - 10.1021/acsami.6b12044 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2016 Nov 30;8(47):32565-32573. doi: 
      10.1021/acsami.6b12044. Epub 2016 Nov 18.