Month: November 2022

On March 8, 2022, Liu, Jingjing; Gnanou, Yves; Feng, Xiaoshuang published an article.Quality Control of 1,3-Diphenylurea The title of the article was Expanding the Scope of Boron-Based Ate Complexes by Manipulating Their Reactivity: The Case of Cyclic Esters and Their (Co)Polymers. And the article contained the following:

The value and merit of triethylborane (TEB)-based ate complexes for the synthesis of various oxygenated polymers have been recently illustrated through successful examples of homopolymerization of epoxides and of their copolymerization with CO2, CS2, COS, anhydrides, isocyanates, etc. To further expand the scope of TEB-based initiating systems to a broader family of oxygenated polymers, they were used in this study to anionically polymerize cyclic esters and to copolymerize the latter monomers with propylene oxide (PO). To promote a fast and controlled ring-opening polymerization (ROP) of cyclic esters, hydrogen-bonding donors such as amines and (thio)ureas were added to TEB-based ate complexes used as initiators. Only under these conditions could the ROP of ε-caprolactone (CL), δ-valerolactone (VL), and L-lactide (LLA) proceed under controlled conditions with hardly detectable intra- or intermol. transesterifications. The role of amines and (thio)ureas when used alone or together in association with these boron-based initiators is discussed in detail. The controlled character of the polymerization of CL, VL, and LLA is attested by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-ToF MS) and other characterization techniques. As examples of the far-reaching potential of these borane-based ate complexes, random P(PO-co-VL) copolymers were derived by statistical copolymerization of VL with PO and various well-defined block copolymers-PPO-b-PVL, PVL-b-PPO, PPO-b-PCL, PPO-b-PLLA, and PPO-b-PVL-b-PPO-were grown by sequential polymerization of the corresponding monomers. The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Quality Control of 1,3-Diphenylurea

The Article related to boron ate complex cyclic ester polymer, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Quality Control of 1,3-Diphenylurea

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On February 22, 2018, Weber, Anna; Rangheard, Claudine; Kessler, Michael; Leitner, Walter; Guertler, Christoph; Koopmans, Carsten; Mueller, Thomas Ernst published a patent.Recommanded Product: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione The title of the patent was Process for the synthesis of polyoxazolidinone compounds. And the patent contained the following:

The invention relates to a method for the production of polyoxazolidinone compounds, comprising reacting an isocyanate compound (A) with an epoxide compound (B) in the presence of a catalyst (C), wherein the isocyanate compound (A) comprises a isocyanate compound (A1), comprising at least two isocyanate groups (I1 ≥ 2), preferred two isocyanate groups (I1 = 2), wherein the epoxide compound (B) comprises a epoxide compound (B1) and an epoxide compound (B2) different from the epoxide compound (B1), wherein the epoxide compound (B1) comprising at least two terminal epoxide groups (F1 ≥ 2), preferred two terminal epoxide groups (F1 = 2), linked together by a linking group (L1), and the epoxide compound (B2) comprising at least two terminal epoxide groups (F2 ≥ 2), preferred two terminal epoxide groups (F2 = 2), linked together by a linking group (L2 ), wherein the linking group (L2) comprises acyclic and covalent bonds to each other free of conjugated multiple bonds within the main chain, wherein the epoxide compound (B2) is present in the epoxide compounds B1 and B2 in an amount of ≥ 0.01 – < 10 mol%, preferred 1 - 9 mol%, more preferred 3 - 8 mol% based on the molar ratio the terminal epoxide groups in the epoxide compound (B1) and of the sum of the terminal epoxide groups in the epoxide compound (B1) and terminal epoxide groups in the epoxide compound (B2). Polyoxazolidinone compound, obtainable by the inventive method, is also claimed. Spun fiber, comprising a polyoxazolidinone compound, is also concerned. Textile, comprising a spun fiber, is also directed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Recommanded Product: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

The Article related to polyoxazolidinone compound synthesis catalyst, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Recommanded Product: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On May 6, 2020, there was a patent about epoxides.Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione The title of the patent was Method for the production of thermoplastic polyoxazolidinone polymers. And the patent contained the following:

The invention relates to a process for producing thermoplastic polyoxazolidinones, comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), characterized in that, the bisepoxide compound (B) comprises isosorbide diglycidyl ether, the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, the compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises: (a) placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture; and (b) adding the diisocyanate compound (A), the bisepoxide compound (B), and the compound (D) to the mixture resulting from step (a). Thermoplastic polyoxazolidinone obtainable by the inventive process is also claimed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

The Article related to thermoplastic polyoxazolidinone polymerization, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Name: 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On September 30, 2021, Frick-Delaittre, Elena; Westhues, Stefan; Wolf, Aurel; Koopmans, Carsten; Koenig, Thomas; Guertler, Christoph; Laemmerhold, Kai; Thiel, Daniel; Movahhed, Sohajl published a patent.Electric Literature of 5455-98-1 The title of the patent was Method for the production of thermoplastic polyoxazolidinones. And the patent contained the following:

The invention relates to a process for producing thermoplastic polyoxazolidinones, comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) optionally in a solvent (E); wherein the compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, cyclic carbonate, monofunctional alc., monofunctional amine, preferred monofunctional epoxide; wherein the process is performed at reaction temperatures of ≥ 178 – ≤ 230°, preferred ≥ 182 – ≤ 220°, more preferred ≥ 188 – ≤ 210°; most preferred ≥ 190 – ≤ 205°; wherein the bisepoxide compound (B) comprises 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) and 4,4′-isopropylidenediphenol diglycidyl ether (4,4′ BADGE); and wherein the molar ratio of 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) is from >3 mol-% to <11 mol preferable >4 mol-% to <9 mol more preferable >5 mol-% to <8 mol related to the sum of 2,4'-isopropylidenediphenol diglycidyl ether (2,4' BADGE) and 4,4'-isopropylidenediphenol diglycidyl ether (4,4' BADGE). Thermoplastic polyoxazolidinone obtainable by the inventive process is also claimed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Electric Literature of 5455-98-1

The Article related to thermoplastic polyoxazolidinone polymerization, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Electric Literature of 5455-98-1

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On September 29, 2021, Frick-Delaittre, Elena; Westhues, Stefan; Wolf, Aurel; Koopmans, Carsten; Koenig, Thomas; Guertler, Christoph; Laemmerhold, Kai; Thiel, Daniel; Movahhed, Sohajl published a patent.Safety of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione The title of the patent was Method for the production of thermoplastic polyoxazolidinones. And the patent contained the following:

The invention relates to a process for producing thermoplastic polyoxazolidinones, comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) optionally in a solvent (E); wherein the compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, cyclic carbonate, monofunctional alc., monofunctional amine, preferred monofunctional epoxide; wherein the process is performed at reaction temperatures of ≥ 178 – ≤ 230°, preferred ≥ 182 – ≤ 220°, more preferred ≥ 188 – ≤ 210°; most preferred ≥ 190 – ≤ 205°; wherein the bisepoxide compound (B) comprises 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) and 4,4′-isopropylidenediphenol diglycidyl ether (4,4′ BADGE); and wherein the molar ratio of 2,4′-isopropylidenediphenol diglycidyl ether (2,4′ BADGE) is from >3 mol-% to <11 mol preferable >4 mol-% to <9 mol more preferable >5 mol-% to <8 mol related to the sum of 2,4'-isopropylidenediphenol diglycidyl ether (2,4' BADGE) and 4,4'-isopropylidenediphenol diglycidyl ether (4,4' BADGE). Thermoplastic polyoxazolidinone obtainable by the inventive process is also claimed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Safety of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

The Article related to thermoplastic polyoxazolidinone polymerization, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Safety of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On May 7, 2020, Koopmans, Carsten; Laemmerhold, Kai; Guertler, Christoph; Frick-Delaittre, Elena; Wolf, Aurel; Simon, Joachim; Wang, Min; Thiel, Daniel; Leitner, Walter published a patent.HPLC of Formula: 5455-98-1 The title of the patent was Method for the production of thermoplastic polyoxazolidinone polymers. And the patent contained the following:

The invention relates to a process for producing thermoplastic polyoxazolidinones, comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), characterized in that, the bisepoxide compound (B) comprises isosorbide diglycidyl ether, the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, the compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and wherein the process comprises: (a) placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture; and (b) adding the diisocyanate compound (A), the bisepoxide compound (B), and the compound (D) to the mixture resulting from step (a). Thermoplastic polyoxazolidinone obtainable by the inventive process is also claimed. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).HPLC of Formula: 5455-98-1

The Article related to thermoplastic polyoxazolidinone polymerization, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.HPLC of Formula: 5455-98-1

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On December 22, 2020, Park, Nathaniel H.; Zubarev, Dmitry Yu.; Hedrick, James L.; Kiyek, Vivien; Corbet, Christiaan; Lottier, Simon published an article.Safety of 1,3-Diphenylurea The title of the article was A Recommender System for Inverse Design of Polycarbonates and Polyesters. And the article contained the following:

The convergence of artificial intelligence and machine learning with material science holds significant promise in rapidly accelerating the development timelines of new high-performance polymeric materials. Within this context, we report an inverse design strategy for polycarbonate and polyester discovery based on a recommendation system that proposes polymerization experiments that are likely to produce materials with targeted properties or characteristics. Following the recommendations of the system driven by the historical ring-opening polymerization results, we carried out experiments targeting specific ranges of monomer conversion and dispersity for polyesters or polycarbonates. The results of the experiments were in close agreement with the recommendation targets with few false negatives or positives obtained for each class. The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Safety of 1,3-Diphenylurea

The Article related to recommender system design polycarbonate polyester, Chemistry of Synthetic High Polymers: Ring-Opening and Other Polymerizations and other aspects.Safety of 1,3-Diphenylurea

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On May 1, 2020, Tong, Yutao; Cheng, Ruihua; Yu, Lingling; Liu, Boping published an article.Formula: C11H9NO3 The title of the article was New strategies for synthesis of amino-functionalized poly(propylene carbonate) over SalenCo(III)Cl catalyst. And the article contained the following:

New strategies for synthesis of amino-functionalized poly(propylene carbonate) (PPC) were applied by terpolymn. of carbon dioxide, propylene oxide, with (a) N-(2,3-epoxypropyl)-2-phthalimide (Monomer A)/N-(2-oxiranylmethyl)-1 or (b) N-(2-oxiranylmethyl)-1,1-dimethylethyl ester (Monomer B) over SalenCo(III)Cl/PPNCl catalysts system, followed by the removal of the resp. protecting groups. The SalenCo(III)Cl presented high activity and yielded the terpolymer with high polycarbonate selectivity, carbonate linkage content, as well as high head-to-tail stereoregularity (>99%). In terpolymn., the Monomer A contents in PPC-Pht were easily regulated up to 12.0 mol%. However, the protecting groups could not be completely removed because of the degradation of PPC-NH2-A during the deprotection process. Meanwhile, when terpolymn. with Monomer B, PPC-butoxy carbonyl was obtained varied the Monomer B contents from 1.3 to 4.5 mol%, and could be transformed completely into the amino-functionalized PPC-NH2-B without significant backbone degradation The contact angles of the functionalized PPC-NH2s prepared by two strategies showed the expected increase in hydrophilicity with the increasing content of amino entities. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Formula: C11H9NO3

The Article related to polypropylene carbonate amino functionalized salen catalyst, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Formula: C11H9NO3

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On February 1, 2018, Peters, Edward Norman published a patent.Application In Synthesis of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione The title of the patent was Epoxy hardener composition and associated forming method, uncured and cured epoxy resin compositions, and article. And the patent contained the following:

A hardener composition comprising: (A) 1 to 80% of a hydroxyl-diterminated poly(phenylene ether) having an intrinsic viscosity of 0.03 to 0.2 dL per g measured by Ubbelohde viscometer at 25° in chloroform; and (B) 20 to 99% of an anhydride having structure I wherein q is zero or 1, Ra is C1-C6-alkyl, and X is -CH2-, -(CH2)2-, -O-, or -S-; wherein the hardener composition exhibits a single glass transition temperature from -80 to 200°, wherein the single glass transition temperature has a value of -46 to 110°; and wherein the hardener composition comprises zero to 1% of solvents for the hydroxyl-diterminated poly(phenylene ether). Also disclosed are a method of forming the hardener composition, a curable epoxy composition incorporating the hardener composition, a cured composition formed from the curable epoxy composition, and an article that includes the cured composition The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Application In Synthesis of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

The Article related to polyoxyphenylene anhydride epoxy hardener composition long pot life, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Application In Synthesis of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On October 23, 2014, Qin, Bing; Li, Xin; Liang, Bo published a patent.Electric Literature of 5455-98-1 The title of the patent was Novel cyclic acetal, cyclic ketal diamines epoxy curing agents and degradable polymers and composites based thereon. And the patent contained the following:

The title curing agent can generate a degradable crosslinked polymer by performing polymerization reaction with an epoxy resin. The degradable crosslinked polymer can be degraded in a mixed system of acid and solvent under the condition of heating and stirring. This reinforced composite is prepared using the curing agent, the epoxy resin, and auxiliary materials. This reinforced composite can be degraded in a mixed system of acid and solvent under the condition of heating and stirring, and can be recovered and reutilized after neutralization. This reinforced composite has high mech. performance, and wide range of application. The experimental process involved the reaction of 2-(Oxiran-2-ylmethyl)isoindoline-1,3-dione(cas: 5455-98-1).Electric Literature of 5455-98-1

The Article related to degradable cyclic acetal ketal diamine crosslinking agent epoxy resin, Plastics Manufacture and Processing: Formulating Procedures and Compositions and other aspects.Electric Literature of 5455-98-1

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics