1、Hyperbranched Thiol

To address this, we designed and synthesized a series of thiol-terminated branched polyurethanes with varying molecular weights to act as curing agents for epoxy resins.

2、Thiol

Thiol-terminated modified epoxy resins are polymers with a unique structure, characterized by a copolymer formed from the combination of an epoxy resin matrix and thiol groups.

3、Thiol

Thiol-terminated modified epoxy resins are polymers with a unique structure, characterized by a copolymer formed from the combination of an epoxy resin matrix and thiol groups.

4、Catechol

Herein, a synthetic strategy to incorporate catechol groups into polymer structures via thiol-epoxy click chemistry was developed, the covalent and iron-catechol coordination bonds are combined to build up the material consisting of two types of crosslinks.

POLYTHIOL™ QE

POLYTHIOL™ QE-340M is a thiol-terminated reactive polyether liquid polymer used as a liquid curing agent for epoxy resins with unique rapid-cure characteristics.

Design and synthesis of thiol

In this work, a soluble thiol-terminated imidothioether oligomer (TPI) was synthesized and used as a latent hardener and modifier to prepare one-pot epoxy/thiol systems without the latent catalysts.

Thioplast®

Thioplast® EPS can either be used alone or in combination with conventional epoxy resins to produce high-performance heavy-duty adhesives and coatings. Manufacturers from the automotive, marine or chemical industries rely on Thioplast® EPS grades.

Thiol

A novel curing methodology based on the combination of thiol-yne and thiol-epoxy click reactions has been developed. The curing process consists of a first photoinitiated thiol-yne reaction, followed by a thermal thiol-epoxy process.

Polymer Modification with Reactive Silicones

In this example of a hybrid organic/silicone epoxy resins system, we reacted an organic cycloaliphatic epoxy with a cycloaliphatic epoxy modified silicone. The silicone used is Silmer EPC F418-F, which is also modified with a EO/PO polyether chains for miscibility.

Journal of Applied Polymer Science

In this paper, nano-TiO 2 particles were treated by KH570 in advance and the surface of which were grafted by thiol-terminated hyperbranched polymer (THBP), hereby THBP@TiO 2 was obtained.

In modern materials science, epoxy resins have become indispensable in numerous fields due to their excellent physical and chemical properties. the molecular structure of epoxy resins makes them prone to brittle fracture under extreme conditions, limiting their use in certain applications. To overcome this challenge, thiol-terminated modified epoxy resins have emerged. By introducing thiol groups, these materials improve toughness and chemical resistance, thereby broadening the application range of epoxy resins.

Thiol-terminated modified epoxy resins are polymers with a unique structure, characterized by a copolymer formed from the combination of an epoxy resin matrix and thiol groups. This modification method not only retains the superior properties of epoxy resins, such as excellent mechanical strength, good electrical insulation, and chemical resistance, but also imparts new functional characteristics, including enhanced fatigue resistance and improved temperature resistance.

The preparation of thiol-terminated modified epoxy resins involves several critical steps. First, an appropriate epoxy resin is selected as the base resin, typically glycidyl ether epoxy resins, due to their high reactivity and widespread applicability. Next, thiol groups are chemically introduced into the epoxy resin molecular chains. This process requires precise control of reaction conditions to ensure uniform distribution of thiol groups without compromising other properties of the resin. Finally, post-treatment of the modified epoxy resin, such as curing and drying, is performed to achieve the desired performance.

Thiol-terminated modified epoxy resins demonstrate significant advantages in practical applications. In the aerospace sector, the material is widely used in aircraft structures and thermal protection systems due to its优异的 mechanical properties and high-temperature resistance. For example, thiol-terminated modified epoxy resin composites were employed in the wings and fuselage of Boeing 787 aircraft, where these components withstood extreme temperature and pressure changes, proving the reliability of thiol-modified epoxy resins in high-temperature environments.

In the automotive industry, thiol-terminated modified epoxy resins also play a vital role. They are used to manufacture automotive body panels, engine parts, and transmission system components, which require high strength and toughness during impact or vibration. For instance, a leading automotive manufacturer utilized thiol-terminated modified epoxy resin as a protective layer for battery packs in its new electric vehicles, significantly enhancing safety performance and extending service life.

Beyond these applications, thiol-terminated modified epoxy resins are increasingly important in construction, electronics, and healthcare. In construction, the material is used to produce high-performance flooring, ceilings, and partition walls, offering excellent sound insulation and thermal protection. In electronics, it serves as a substrate for circuit boards, providing superior electrical properties and mechanical stability.

Despite the tremendous potential of thiol-terminated modified epoxy resins, challenges remain. For example, thiol groups may affect processing properties such as flowability and adhesion, potentially limiting their use in complex-shaped components. Additionally, the long-term stability of thiol groups is a concern, as gradual degradation under environmental exposure could compromise material performance over time.

Looking ahead, the development of thiol-terminated modified epoxy resins will further advance materials science. With advancements in nanotechnology and biotechnology, functionalization of thiol groups is expected to diversify, expanding the unique advantages of these materials across more domains. Meanwhile, growing environmental awareness will drive research toward greener thiol-terminated modified epoxy resin formulations.

As a revolutionary new material, thiol-terminated modified epoxy resin will play an increasingly critical role in future materials science. Through continuous technological innovation and optimization, these materials are poised to bring greater convenience and progress to human society.