Degradable polyurethane based on triblock polyols composed of polypropylene glycol and ε-caprolactone for marine antifouling applications

Yao, Jinghua; Dai, Zheng-Wei; Yi, Jie; Yu, Hongliang; Wu, Bo; Dai, Leyang

doi:10.1007/s11998-019-00313-3

Cited by 11 publications

(7 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polyurethane is widely used in coatings, adhesives, food packaging, building materials, and medical materials because of its excellent mechanical properties and good adhesion to a substrate. , As regards marine anti-biofouling, polyurethane with high adhesion strength and capacity for large deformations is irreplaceable for flexible substrates such as rubber and fishing net . In recent years, we have introduced degradable segments into polyurethane to prepare a series of degradable polyurethanes for marine anti-biofouling. − Following this concept, triblock and star-shaped polyester based polyurethanes were developed to inhibit marine biofouling. , Those polyurethanes not only have adequate mechanical properties to meet the demands of flexible substrates but also degrade at a constant rate, so that the release of antifoulants in static or dynamic conditions is controlled.…”

Section: Degradable and Hydrolyzable Polymersmentioning

confidence: 99%

Degradable Vinyl Polymers for Combating Marine Biofouling

Pan

et al. 2022

Acc. Chem. Res.

View full text Add to dashboard Cite

Conspectus Marine organisms such as barnacle larvae and spores of algae adhere to underwater surfaces leading to marine biofouling. This phenomenon has numerous adverse impacts on marine industries and maritime activities. Due to the diversity of fouling organisms and the complexity of the marine environment, it is a huge challenge to combat marine biofouling, which limits the development and utilization of marine resources. Since the International Marine Organization banned the use of tributyltin self-polishing copolymer (SPC) coatings in 2008, the development of an environmentally friendly and efficient anti-biofouling polymer has been the most important task in this field. Tin-free SPC is a well-established and widely used polymer binder for anti-biofouling coating today. Being a nondegradable vinyl polymer, SPC exhibits poor anti-biofouling performance in static conditions. Even more, such nondegradable polymers were considered to be a source of microplastics by the International Union for the Conservation of Nature in 2019. Recently, numerous degradable polymers, which can form dynamic surface through main chain scission, have been developed for preventing marine biofouling in static conditions. Nevertheless, the regulation of their degradation and mechanical properties is limited, and they are also difficult to functionalize. A new polymer combining the advantages of vinyl polymers and degradable polymers is needed. However, such a combination is a challenge since the former are synthesized via free radical polymerization whereas the latter are synthesized via ring-opening polymerization. In this Account, we review our recent progress toward degradable vinyl polymers for marine anti-biofouling in terms of polymerization methods and structures and properties of polymers. First, we introduce the strategies for preparing degradable vinyl polymers with an emphasis on hybrid copolymerization. Then, we present the synthesis and performance of degradable and hydrolyzable polyacrylates, degradable polyurethanes with hydrolyzable side groups, and surface-fragmenting hyperbranched polymers. Polymers with degradable main chains and hydrolyzable side groups combine the advantages of SPC and degradable polymers, so they are degradable and functional. They are becoming new-generation polymers with great potential for preparing high-efficiency, long-lasting, environmentally friendly and broad-spectrum coatings to inhibit marine biofouling. They can also find applications in wastewater treatment, biomedical materials, and other fields.

show abstract

Section: Degradable and Hydrolyzable Polymersmentioning

confidence: 99%

Degradable Vinyl Polymers for Combating Marine Biofouling

Pan

et al. 2022

Acc. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Degradable polyurethane-based coatings were investigated by two-step condensation polymerization of poly(propylene carbonate) polyurethane (PPCU) [ 52 ] or by mixing triblock polyols (polyether (polypropylene glycol or polyethylene glycol) and ε-caprolactone) and crosslinker agent (toluene diisocyanate trimer) [ 53 ]. The hydrolytic degradation of the polyurethane coating allows a self-renewal antifouling mechanism able to release foulants entrapped in the polymeric matrix.…”

Section: Polyurethane Coatingsmentioning

confidence: 99%

Mechanical Properties of Protective Coatings against Marine Fouling: A Review

2021

View full text Add to dashboard Cite

The accumulation of marine organisms on ship hulls, such as microorganisms, barnacles, and seaweeds, represents a global problem for maritime industries, with both economic and environmental costs. The use of biocide-containing paints poses a serious threat to marine ecosystems, affecting both target and non-target organisms driving science and technology towards non-biocidal solutions based on physico-chemical and materials properties of coatings. The review reports recent development of hydrophobic protective coatings in terms of mechanical properties, correlated with the wet ability features. The attention is focused mainly on coatings based on siloxane and epoxy resin due to the wide application fields of such systems in the marine industry. Polyurethane and other systems have been considered as well. These coatings for anti-fouling applications needs to be both long-term mechanically stable, perfectly adherent with the metallic/composite substrate, and capable to detach/destroy the fouling organism. Prospects should focus on developing even “greener” antifouling coatings solutions. These coatings should also be readily addressable to industrial scale-up for large-scale product distribution, possibly at a reasonable cost.

show abstract

“…The nature of these degradations means that the rate of renewal does not depend on vessel motion and can occur on a stationary or docked vessel, unlike many ablative coatings [ 50 ]. In an investigation into triblock polyols composition, Yao et al [ 51 ] added 4,5-dichloro-2-octyl-4-isothiazolin-3-one (DCOIT) to polyols containing CL and either polypropylene glycol (PPG) or polyethylene glycol (PEG). Individually, these components are all antifouling in some way; DCOIT is a potent biocide, CL is degradable and can refresh surfaces, and PEG and PPG are hydrophilic.…”

Section: Delivery Mechanisms and Systemsmentioning

confidence: 99%

Materials Selection for Antifouling Systems in Marine Structures

2022

View full text Add to dashboard Cite

Fouling is the accumulation of unwanted substances, such as proteins, organisms, and inorganic molecules, on marine infrastructure such as pylons, boats, or pipes due to exposure to their environment. As fouling accumulates, it can have many adverse effects, including increasing drag, reducing the maximum speed of a ship and increasing fuel consumption, weakening supports on oil rigs and reducing the functionality of many sensors. In this review, the history and recent progress of techniques and strategies that are employed to inhibit fouling are highlighted, including traditional biocide antifouling systems, biomimicry, micro-texture and natural components systems, superhydrophobic, hydrophilic or amphiphilic systems, hybrid systems and active cleaning systems. This review highlights important considerations, such as accounting for the effects that antifouling strategies have on the sensing mechanism employed by the sensors. Additionally, due to the specialised requirements of many sensors, often a bespoke and tailored solution is preferential to general coatings or paints. A description of how both fouling and antifouling techniques affect maritime sensors, specifically acoustic sensors, is given.

show abstract

Degradable polyurethane based on triblock polyols composed of polypropylene glycol and ε-caprolactone for marine antifouling applications

Cited by 11 publications

References 25 publications

Degradable Vinyl Polymers for Combating Marine Biofouling

Degradable Vinyl Polymers for Combating Marine Biofouling

Mechanical Properties of Protective Coatings against Marine Fouling: A Review

Materials Selection for Antifouling Systems in Marine Structures

Contact Info

Product

Resources

About