From soft hyperbranched polymers to hard crosslinkers: UV curable macromers that contained oxetane on and around hyperbranched frameworks

Li, Fan; Guo, Xinyue; Wang, Yonghui; Jin, Ming

doi:10.1016/j.eurpolymj.2023.112074

Cited by 5 publications

(3 citation statements)

References 41 publications

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“…Isin and coworkers developed silica modified nanocomposite coating using cationic polymerization to improve abrasion strength of the coating system [64]. Oxenate groups were cured using cationic polymerization to develop coating with a hardness of 6H [65]. Very recently, even biobased linseed, soybean, and tung oil were reported to have been used in cationically polymerized systems [12,66,67].…”

Section: Cationic Polymerizationmentioning

confidence: 99%

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

Patil,

Thomas,

Patil

et al. 2023

J. Compos. Sci.

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The industrial application of UV curable coatings is being widely commercialized at a rapid pace with very diversified product markets. UV curing has existed for many years now, but the new commercial opportunities emerging for sustainable, and climate friendly technologies have driven demand for photo-curable coating systems. It is primarily attributed to its environmentally friendly solvent-free and energy-efficient method. Precedented UV light curable coatings are being commercialized and numerous lamp sources are being extensively studied. In such an era of predominant research evolving the UV curing technology horizon, we attempt to outline the state of the art, opportunities, and challenges. This contribution attempts to highlight, in a comprehensive way, sustainable UV coating on the basis of recent research advancements, existing challenges and prospective scope in this field. With a set of prerequisite foundational knowledge into UV curable coatings and mechanisms, the review has meticulously looked at the recent research advancements. This review contribution attempts to focus on three aspects: the known science behind UV curing coatings, coupled with the recent advancements, and future opportunities.

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Section: Cationic Polymerizationmentioning

confidence: 99%

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

Patil,

Thomas,

Patil

et al. 2023

J. Compos. Sci.

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“…To describe the polyaddition of A2+CB2 Scheme 1. Synthesis of HBP by polyaddition of the monomer types A 2 +B 3 [23][24][25], A 2 +B 4 [26][27][28], A 2 +CB 2 [29][30][31], and A 2 +B B 2 [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

“…To reduce the p g value, co-polyaddition of asymmetric monomers (A 2 +CB 2 , A 2 +B B 2 , AA +B 3 , A 2 +C 2 +B 3 ) was introduced [29][30][31][32][33][34][35][36][37][38][39] (Scheme 1). These approaches made it possible to shift the gel point, since more AB 2 monomers were formed, and therefore, it was possible to obtain polymers with an increased MW.…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Investigation of the Polyaddition of an AB2+A2+B4 Monomer Mixture

Karpov,

Iakunkov,

Chernyaev

et al. 2024

Polymers

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Hyperbranched polymers (HBPs) are widely applied nowadays as functional materials for biomedicine needs, nonlinear optics, organic semiconductors, etc. One of the effective and promising ways to synthesize HBPs is a polyaddition of AB2+A2+B4 monomers that is generated in the A2+CB2, AA′+B3, A2+B′B2, and A2+C2+B3 systems or using other approaches. It is clear that all the foundational features of HBPs that are manufactured by a polyaddition reaction are defined by the component composition of the monomer mixture. For this reason, we have designed a structural kinetic model of AB2+A2+B4 monomer mixture polyaddition which makes it possible to predict the impact of the monomer mixture’s composition on the molecular weight characteristics of hyperbranched polymers (number average (DPn) and weight average (DPw) degree of polymerization), as well as the degree of branching (DB) and gel point (pg). The suggested model also considers the possibility of a positive or negative substitution effect during polyaddition. The change in the macromolecule parameters of HBPs formed by polyaddition of AB2+A2+B4 monomers is described as an infinite system of kinetic equations. The solution for the equation system was found using the method of generating functions. The impact of both the component’s composition and the substitution effect during the polyaddition of AB2+A2+B4 monomers on structural and molecular weight HBP characteristics was investigated. The suggested model is fairly versatile; it makes it possible to describe every possible case of polyaddition with various monomer combinations, such as A2+AB2, AB2+B4, AB2, or A2+B4. The influence of each monomer type on the main characteristics of hyperbranched polymers that are obtained by the polyaddition of AB2+A2+B4 monomers has been investigated. Based on the results obtained, an empirical formula was proposed to estimate the pg = pA during the polyaddition of an AB2+A2+B4 monomer mixture: pg = pA = (−0.53([B]0/[A]0)1/2 + 0.78)υAB2 + (1/3)1/2([B]0/[A]0)1/2, where (1/3)1/2([B]0/[A]0)1/2 is the Flory equation for the A2+B4 polyaddition, [A]0 and [B]0 are the A and B group concentration from A2 and B4, respectively, and υAB2 is the mole fraction of the AB2 monomer in the mixture. The equation obtained allows us to accurately predict the pg value, with an AB2 monomer content of up to 80%.

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Polymers and Their Crosslinkers

2024

Handbook of Curatives and Crosslinkers

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From soft hyperbranched polymers to hard crosslinkers: UV curable macromers that contained oxetane on and around hyperbranched frameworks

Cited by 5 publications

References 41 publications

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

To Shed Light on the UV Curable Coating Technology: Current State of the Art and Perspectives

A Theoretical Investigation of the Polyaddition of an AB2+A2+B4 Monomer Mixture

Polymers and Their Crosslinkers

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