Non-Isocyanate Polyurethanes – Yesterday, Today and Tomorrow

Фиговский, Олег Львович; Лейкин, А. Д.; Shapovalov, L.

doi:10.15518/isjaee.2016.03-04.009

Cited by 22 publications

(18 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One else direction of the Montpellier's team work is synthesis of amine-terminated PHU and use it for curing polyepoxides [17]. (It should be noted that such technology has developed in the 1960-80`s; see, for example, review of patents in [2]). PHU prepolymers were prepared from poly(propylene oxide) bis-carbonate and different excess of ethylenediamine.…”

Section: Brief Description Of Recent Work In the Field Of Nipumentioning

confidence: 99%

“…In recent years, intensive research and development are carried out for preparing isocyanate free urethanes and polyurethanes. Some reviews dedicated to synthesis of non-isocyanate urethanes and non-isocyanate polyurethanes (NIPU) on the base of reaction "fivemembered cyclic carbonate -amine" have been presented [1][2][3][4][5][6][7][8]. Fig.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Application of Nonisocyanate Polyurethanes

Figovsky¹,

Shapovalov²,

Leykin³

2016

ChChT

View full text Add to dashboard Cite

The latest published achievements in the research and developments of non-isocyanate polyurethanes on the base of five-membered cyclic carbonates and amines are briefly presented. Preparations of hybrid epoxy-amine hydroxyurethane-grafted polymers with a controlled number of cross-links are described. Examples of the use of hydroxyurethanes of different nature for modification of the oligomeric compositions are also given.

show abstract

Section: Brief Description Of Recent Work In the Field Of Nipumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of Nonisocyanate Polyurethanes

Figovsky¹,

Shapovalov²,

Leykin³

2016

ChChT

View full text Add to dashboard Cite

show abstract

“…Extensive studies have been carried out by researchers and industries to introduce green approaches toward polyurethane (PE) coatings. Nonisocyanate polyurethanes (NIPUs) have been synthesized through various methods such as transurethanization of dimethyl carbamate and diol in the presence of strong base catalyst, reaction of bis(2‐hydroxyethyl carbamate) with hydroxyl groups to form diol or part of bis(2‐hydroxyethyl carbamate) to yield linear thermoplastic PU, copolymerization of aziridine, and supercritical CO 2 to yield cyclic urethanes and also ring‐opening polymerization of cyclic carbamates . Although these routes have successfully resulted into NIPUs, the products have shown inferior properties compared to conventional PU without complete elimination of toxic substances such as phosgene …”

Section: Introductionmentioning

confidence: 99%

Design of hybrid nonisocyanate polyurethane coatings for advanced ambient temperature curing applications

Asemani

Zareanshahraki

Mannari

2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

This study is focused on development of environmentally benign, two component, high solid, nonisocyanate Polyurethane (NIPU) coatings through a novel route based on cyclic carbonate/amine chemistry. Cyclic carbonates are synthesized and reacted with an excess amount of amine to yield polyurethane polyamines (PUPAs). Coatings are then prepared by using stoichiometric proportions of PUPAs and aliphatic epoxies as crosslinkers and their coating properties are studied. Results reveal that by proper design of NIPU oligomers—functional group content, backbone structure, and molecular weight (M n)—coatings with outstanding performance features such as low temperature flexibility and resistance to chemicals can be obtained and selected coatings containing PUPA with M n = 1480 and 1:1.5 mol ratio of low‐molecular‐weight amine exceed the performance of a conventional isocyanate‐based reference sample. Elimination of isocyanates, substantially reduced volatile organic compounds as well as fast ambient curing, make these polyurethane coatings a promising alternative for various industrial applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47266.

show abstract

“…16 The most promising alternative seems the step-growth polymerization of five-membered cyclocarbonates with amines. These last decades poly(hydroxyurethanes)s (PHU) obtained via this route have been extensively studied, particularly by Tomita et al, [17][18][19] Carre et al, 20,21 Figovsky et al, 22 as well as by our team. [23][24][25] Remendable thermosets could be obtained by using reversible functions in the polymer backbone of the networks.…”

Section: Introductionmentioning

confidence: 99%