Regio‐, enantio‐, peri‐, and stereo‐selectivities of the reactions of five‐membered cyclodiene derivatives with itaconic anhydride toward the formation of norbornene lactones

2020 ◽  
Author(s):  
Wisdom Kwaku Samba ◽  
Richard Tia ◽  
Evans Adei
Keyword(s):  
Itaconic Anhydride

Self-linked polymer gels [based on hyaluronic acid and poly (itaconic anhydride-co-3, 9-divinyl-2, 4, 8, 10-tetraoxaspiro [5.5] undecane)] as potential drug delivery networks

2015 ◽  
Author(s):  
Alina Diaconu ◽  
Loredana E. Nita ◽  
Aurica P. Chiriac ◽  
Liliana Mititelu Tartau ◽  
Florica Doroftei ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hyaluronic Acid ◽  
Polymer Gels ◽  
Potential Drug ◽  
Itaconic Anhydride ◽  
Delivery Networks

Post-polymerization modification of poly(lactic acid) via radical grafting with itaconic anhydride

2016 ◽  
Vol 77 ◽  
pp. 16-30 ◽  
Author(s):  
Josef Petruš ◽  
František Kučera ◽  
Jaroslav Petrůj
Keyword(s):  
Lactic Acid ◽  
Poly Lactic Acid ◽  
Itaconic Anhydride

Modification of Starch Using Itaconic Anhydride and its Characterizations

2021 ◽  
Vol 874 ◽  
pp. 149-154
Author(s):  
Dita Rengganis ◽  
Rachmawati Rachmawati
Keyword(s):  
Chemical Modification ◽  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Thermal Behaviour ◽  
Modified Starch ◽  
Sem Micrographs ◽  
Itaconic Anhydride

In this study, the chemical modification of starch was conducted using itaconic anhydride as an esterifying agent. The results showed that sulphuric acid is more effective as a catalyst for esterification of starch compared to sodium hydroxide. The presence of attached itaconic anhyride in the starch affected the thermal behaviour and crystallinity of the resulting products as shown by the TGA, DSC, and the XRD data. In addition, the SEM micrographs also indicated that the modified starch exhibited a unique morphology in the form of block with different sizes ranging from 1 to 20 μm in length.

Aza-Annulation of Enaminones with Itaconic Anhydride

2005 ◽  
pp. 1
Author(s):  
M. R. Tracey ◽  
R. P. Hsung ◽  
J. Antoline ◽  
K. C. M. Kurtz ◽  
L. Shen ◽  
...  
Keyword(s):  
Itaconic Anhydride

Orange-red and white-emitting nonconventional luminescent polymers containing cyclic acid anhydride and lactam groups

2020 ◽  
Vol 8 (3) ◽  
pp. 1017-1024 ◽  
Author(s):  
Cong Shang ◽  
Yaxin Zhao ◽  
Jiayu Long ◽  
Ying Ji ◽  
Huiliang Wang
Keyword(s):  
Acid Anhydride ◽  
Vinyl Pyrrolidone ◽  
Cyclic Acid ◽  
Itaconic Anhydride ◽  
Luminescent Polymers

Nonconventional luminescent copolymers poly(itaconic anhydride-co-vinyl caprolactam) (PIVC) and poly(itaconic anhydride-co-vinyl pyrrolidone) (PIVP) emit strong orange-red and bright white emissions, respectively.

scholarly journals Preparation and modification of itaconic anhydride-methyl methacrylate copolymers

2007 ◽  
Vol 72 (12) ◽  
pp. 1507-1514 ◽  
Author(s):  
Milos Milovanovic ◽  
Snezana Trifunovic ◽  
Lynne Katsikas ◽  
Ivanka Popovic
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
1H Nmr Spectroscopy ◽  
Copolymer Composition ◽  
Reactivity Ratios ◽  
Complete Conversion ◽  
Monomer Reactivity Ratios ◽  
Itaconic Anhydride ◽  
Methacrylate Copolymers ◽  
Butyl Amine

The free radical copolymerisation of itaconic anhydride and methyl methacrylate in solution was studied at 60 ?C. The copolymer composition was determined by 1H-NMR spectroscopy and the obtained monomer reactivity ratios were calculated, rITA = 1.35?0.11; rMMA = 0.22?0.22 (by the Fineman-Ross method) and rITA = 1.27?0.38; rMMA = 0.10?0.05 (by the Mayo-Lewis method). The synthesised copolymers were modified by reaction with di-n-butyl amine. The copolymer composition after amidation was determined by elemental analysis via the nitrogen content. Amidation of the anhydride units in the copolymers with di-n-butyl amine resulted in complete conversion to itaconamic acid.

Solid-phase polymerizations at high pressures

1970 ◽  
Vol 23 (3) ◽  
pp. 511 ◽  
Author(s):  
MG Bradbury ◽  
SD Hamann ◽  
M Linton
Keyword(s):  
High Pressure ◽  
Spectral Analysis ◽  
Solid State ◽  
High Pressures ◽  
Solid Phase ◽  
Crystal Form ◽  
Optical Cell ◽  
Itaconic Anhydride ◽  
Temperature Requirements ◽  
Infrared Spectral

The following compounds have been found to polymerize spontaneously in the solid state at pressures in the range 10-50 kbar, at temperatures between 20 and 200�C: acrylamide, p-phenylstyrene, potassium p-styrenesulphonate, itaconic anhydride, maleic anhydride, maleimide, 1,2,3,6-tetrahydrophthalic acid, 1,2,3,6-tetrahydrophthalic anhydride, acenaphthylene, p-benzoquinone, N,N'-p-phenylene-dimaleimide, sulpholene, diphenylacetylene, 8-trioxan. The pressure-temperature requirements for polymerization have been determined in a high-pressure "squeezer" apparatus and in a diamond optical cell which permits infrared spectral analysis of a specimen while it is under compression. Apart from diphenylacetylene and trioxan, the compounds that polymerized were either monosubstituted ethylenes or cyclic 1,2-disubstituted ethylenes. Non-cyclic 1,2-disubstituted ethylenes and tri-substituted and tetra-substituted ethylenes failed to polymerize. There is evidence that shearing stresses played a part in some of the reactions. 1-Allyl-2-thiourea did not polymerize, but transformed from its stable crystal form I to the unstable modification 11.

A renewable dynamic covalent network based on itaconic anhydride crosslinked polyglycerol: Adaptability, UV blocking and fluorescence

2020 ◽  
Vol 385 ◽  
pp. 123960 ◽  
Author(s):  
Yingfa Shan ◽  
Tuan Liu ◽  
Baoming Zhao ◽  
Cheng Hao ◽  
Shuai Zhang ◽  
...  
Keyword(s):  
Uv Blocking ◽  
Itaconic Anhydride
Sign in / Sign up

Export Citation Format

Share Document