Multicomponent Tandem Polymerization of Aromatic Alkynes, Carbonyl Chloride, and Fischer's Base toward Poly(diene merocyanine)s

2019 ◽  
Vol 37 (12) ◽  
pp. 1264-1270 ◽  
Author(s):  
Xiaojuan Tang ◽  
Lihui Zhang ◽  
Rongrong Hu ◽  
Ben Zhong Tang
Keyword(s):  
Carbonyl Chloride

scholarly journals Precise Synthesis and Thin Film Self-Assembly of PLLA-b-PS Bottlebrush Block Copolymers

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1412
Author(s):  
Eunkyung Ji ◽  
Cian Cummins ◽  
Guillaume Fleury
Keyword(s):  
Thin Film ◽  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Periodic Structures ◽  
One Pot ◽  
Ordered Structures ◽  
Carbonyl Chloride ◽  
Thin Film Patterning ◽  
Nanoporous Templates

The ability of bottlebrush block copolymers (BBCPs) to self-assemble into ordered large periodic structures could greatly expand the scope of photonic and membrane technologies. In this paper, we describe a two-step synthesis of poly(l-lactide)-b-polystyrene (PLLA-b-PS) BBCPs and their rapid thin-film self-assembly. PLLA chains were grown from exo-5-norbornene-2-methanol via ring-opening polymerization (ROP) of l-lactide to produce norbornene-terminated PLLA. Norbonene-terminated PS was prepared using anionic polymerization followed by a termination reaction with exo-5-norbornene-2-carbonyl chloride. PLLA-b-PS BBCPs were prepared from these two norbornenyl macromonomers by a one-pot sequential ring opening metathesis polymerization (ROMP). PLLA-b-PS BBCPs thin-films exhibited cylindrical and lamellar morphologies depending on the relative block volume fractions, with domain sizes of 46–58 nm and periodicities of 70–102 nm. Additionally, nanoporous templates were produced by the selective etching of PLLA blocks from ordered structures. The findings described in this work provide further insight into the controlled synthesis of BBCPs leading to various possible morphologies for applications requiring large periodicities. Moreover, the rapid thin film patterning strategy demonstrated (>5 min) highlights the advantages of using PLLA-b-PS BBCP materials beyond their linear BCP analogues in terms of both dimensions achievable and reduced processing time.

scholarly journals SYNTHESIS AND SOME REACTIONS OF DITHIOBIS(CARBONYL CHLORIDE)

1973 ◽  
Vol 2 (12) ◽  
pp. 1315-1318 ◽  
Author(s):  
Norio Kobayashi ◽  
Akiko Osawa ◽  
Tamotsu Fujisawa
Keyword(s):  
Carbonyl Chloride

Production and properties of the carbonyl chloride complex of rhodium (I) with triisopropyl phosphite

1975 ◽  
Vol 24 (10) ◽  
pp. 2041-2043
Author(s):  
E. N. Yurchenko ◽  
A. D. Troitskaya ◽  
L. S. Gracheva ◽  
L. Ya. Al't
Keyword(s):  
Chloride Complex ◽  
Carbonyl Chloride

Polymerisation of methyl ethyl ketone formaldehyde resin modified with carbazole‐9‐carbonyl chloride

2011 ◽  
Vol 40 (4) ◽  
pp. 211-221 ◽  
Author(s):  
Belkis Ustamehmetoğlu ◽  
Pelin Yazıcı ◽  
Nilgun Kızılcan
Keyword(s):  
Methyl Ethyl Ketone ◽  
Formaldehyde Resin ◽  
Methyl Ethyl ◽  
Carbonyl Chloride

Crystal structure of 3-chlorobenzo[b]thiophene-2-carbonyl chloride

2009 ◽  
Vol 2009 (7) ◽  
pp. 437-439 ◽  
Author(s):  
Sara Tarighi ◽  
Alireza Abbasi ◽  
Sara Zamanian ◽  
Alireza Badiei ◽  
Mahmood Ghoranneviss
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
Cinnamic Acid ◽  
Thionyl Chloride ◽  
Structure Determination ◽  
X Ray ◽  
Packing Structure ◽  
H Nmr ◽  
Carbonyl Chloride ◽  
C Nmr

3-Chlorobenzo[b]thiophene-2-carbonyl chloride was synthesised from cinnamic acid and thionyl chloride. The single crystal X-ray structure determination confirmed the earlier proposed structure and the product was further characterised by 1H NMR, 13C NMR and mass spectrometry. The X-ray structure determination revealed two sets of symmetry related molecules along the b-axis that are loosely connected by relatively weak CH…π ( 3.626, 3.628 Å) interactions, giving rise to two infinite chains. The packing structure is dominated by Van der Waals forces between these chains. No significant π–π interactions are found in the crystal structure.

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