Toward Sustainable Adhesives with Biodegradability, Scalability, and Removability: Poly(butylene succinate)-Based Hot-Melt Adhesives DOI

Kwang‐Hyun Ryu,

Jihyun Cho,

Tae‐Hyung Lee

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(44), P. 16165 - 16174

Published: Oct. 21, 2024

Previous studies aiming to achieve sustainability in adhesive materials, primarily focused on the integration of bioderived or biodegradable components. However, existing sustainable adhesives often prioritize permanent adhesion over removability, which limits their recyclability. Herein, we introduce an innovative approach for producing scalable, biodegradable, and removable hot-melt adhesives, offering sustainability. Polybutylene succinate (PBS) was selected as base polymer because its excellent melt processability, biodegradability, commercial availability. To impart adhesiveness, three biomass-derived tackifiers were incorporated; basic rosin, disproportionated rosin ester. The use a twin-screw extruder enabled efficient mixing large-scale production at kilogram scale. Our investigation revealed that exhibited optimal compatibility wettability, attributed high acid value. value promoted rapid crystallization minimized crystal defects. A correlation between behavior strength also established, identifying composition. composition yields satisfactory (2.5 N/25 mm) makes it suitable repositionable adhesives. Additionally, our optimized sufficient biodegradability completely decomposed by lipase within 21 d, has not been observed previous studies. This study provides practical pathway enhancing with potential further advancements tailoring diverse applications future research.

Language: Английский

Unlocking the Potential of Polythioesters DOI Creative Commons

Adam W. Woodhouse,

Azra Kocaarslan, Jennifer A. Garden

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(17)

Published: June 2, 2024

As the demand for sustainable polymers increases, most research efforts have focused on polyesters, which can be bioderived and biodegradable. Yet analogous polythioesters, where one of oxygen atoms has been replaced by a sulfur atom, remain relatively untapped source potential. The incorporation allows polymer to exhibit wide range favorable properties, such as thermal resistance, degradability, high refractive index. Polythioester synthesis represents frontier in research, holding promise paving way eco-friendly alternatives conventional polyesters. Moreover, polythioester also open avenues development recyclable materials. In last 25 years, many methods synthesize polythioesters developed. However, date no industrial developed due challenges costs, yields, toxicity by-products. This review will summarize recent advances synthesis, covering step-growth polymerization, ring-opening polymerization (ROP), biosynthesis. Crucially, benefits processes highlighted, paying particular attention their sustainability, with aim encouraging further exploration into fast-growing field polythioesters.

Language: Английский

Citations

7
New Chemistries for Degradable Pressure‐Sensitive Adhesive Networks DOI Creative Commons
R. A. Bakar, Joseph L. Keddie, Peter J. Roth

et al.

ChemPlusChem, Journal Year: 2024, Volume and Issue: 89(6)

Published: Feb. 21, 2024

With the increasing use of pressure-sensitive adhesives (PSAs) in various industries, there is a need for greater sustainability, particularly developing polymer materials from renewable resources, as well reuse and recycling to reduce environmental impact, waste, or extend their life. Here, we outlined required properties PSAs which are governed by molecular parameters (molecular weights, dispersities, weight between entanglement, cross-links gel content) subsequently define physical (storage loss moduli, glass transition temperature) that good performance peel, tack shear tests. The sustainable approach discussed here development degradable featuring selectively linkages backbone. This provides viable alternative design could overcome 'stickies' problem make cardboard more efficient.

Language: Английский

Citations

5
Visible light-induced photo-radical ring-opening copolymerization of thionolactone and acrylates DOI Creative Commons
Arman Moini Jazani, Roksana Bernat, Krzysztof Matyjaszewski

et al.

Polymer, Journal Year: 2024, Volume and Issue: 302, P. 127032 - 127032

Published: April 8, 2024

Radical ring-opening (co)polymerization (RROP) provides an accessible method for synthesizing main chain degradable vinyl polymers. Although the applications of reversible deactivation radical polymerization (RDRP) into RROP have been reported, use photo-mediated RDRP methods has received less attention than thermal process. Here, photo-RROP thionolactone dibenzo[c,e]-oxepine-5(7H)-thione (DOT) and methyl acrylate (MA) was studied using photo-iniferter (PI) addition-fragmentation(chain) transfer (RAFT) at ambient temperature without external initiators or photocatalysts. Despite occurrence some side reactions including desulfurization-oxygenation O-S isomerization DOT promoted by photoexcited thiocarbonyl groups, polymers with thioester linkages in backbone were prepared, which degraded presence amines bleach.

Language: Английский

Citations

5
Insertion of Degradable Thioester Linkages into Styrene and Methacrylate Polymers: Insights into the Reactivity of Thionolactones DOI Creative Commons

Matthew F. I. Rix,

Kyle Collins,

Samuel J. Higgs

et al.

Macromolecules, Journal Year: 2023, Volume and Issue: 56(23), P. 9787 - 9795

Published: Nov. 30, 2023

The thionolactone 3,3-dimethyl-2,3-dihydro-5H-benzo[e][1,4]dioxepine-5-thione (DBT) is shown to radically homopolymerize, copolymerize rapidly with acrylates and styrene, and, for the first time, methacrylates, introducing a degradable thioester backbone functionality. Surprisingly, aminolysis of DBT homopolymers was accompanied by intramolecular ether cleavage, leading formation 2,2-dimethylthiirane salicylamides. rapid copolymerization styrene exploited produce copolymers through free-radical polymerization in starve-fed semibatch setup. higher reactivity compared current benchmark dibenzo[c,e]oxepine-5(7H)-thione (DOT) inconsistent expected electron-donating effect alkoxy substituent DBT. Using single-crystal XRD structure analysis DFT modeling, this study rationalized (i) better stabilization intermediate radical means overlap adjacent aromatic, which shifts addition equilibrium right; (ii) an increased ring strain DOT, drives ring-opening; (iii) reinitiating efficiency tertiary alkyl open-ring benzylic DOT. These insights are facilitate development further monomers tailored behavior.

Language: Английский

Citations

12
Unleashing the Power of Bio-based Thermotropic Liquid Crystal Modifiers: Toughening and Reinforcing Petroleum-based Epoxy Resin without Compromising Other Properties DOI

Qun-Shan Lu,

Hongwei Gu, Jiahui Li

et al.

Chinese Journal of Polymer Science, Journal Year: 2024, Volume and Issue: 42(8), P. 1093 - 1102

Published: June 26, 2024

Language: Английский

Citations

4
Designing acrylic latexes for pressure‐sensitive adhesives: a review DOI Open Access
Nicholas Ballard

Polymer International, Journal Year: 2023, Volume and Issue: 73(2), P. 75 - 87

Published: Nov. 30, 2023

Abstract Pressure‐sensitive adhesives (PSAs) are essential components of a large number commercial products. The immense range substrates that required to be bonded, coupled with the challenging adhesive properties in many applications, requires development PSAs controllable structure. In this review, acrylic latexes for use PSA applications is discussed, particular emphasis on how adjust synthetic process control properties. Following general introduction PSAs, brief overview fundamental rheological behavior given. Subsequently, routes improve performance through controlling polymerization described. Finally, more complex systems involve structured and multiphase hybrids detailed. review concludes summary future challenges field. © 2023 Society Industrial Chemistry.

Language: Английский

Citations

10
Correlating Formulation and Performance in All‐Acrylic Waterborne Pressure Sensitive Adhesive Latexes DOI Open Access

Julie Bratasanu,

Victoria Aguilar,

Leila Issoufou Alfari

et al.

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Abstract This work investigates the correlation between formulation of waterborne acrylic pressure‐sensitive adhesives (PSAs) and their resulting adhesive performance. A library n ‐butyl acrylate‐based latexes is synthesized via miniemulsion polymerization. Controlled variations in composition these polyacrylates – such as inclusion rigid comonomers, latent crosslinkers chain transfer agents enabled precise control over key network structures particles leading then to a range physical parameters cast PSA films glass transition temperature, entanglement crosslink density. The viscoelastic mechanical behaviors networks are carefully characterized using combination techniques, including linear rheology, dynamic analysis, tensile testing. These properties correlated with performance, measured by probe tack shear holding time tests. comprehensive approach allowed for identification optimal balance that delivers best compromises directly correlating outcomes macromolecular design.

Language: Английский

Citations

0
Backbone Degradable Polymers via Chain-growth Radical Polymerization DOI
Haiwang Lai, Makoto Ouchi

Chinese Journal of Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Language: Английский

Citations

0
Miniemulsion Ring-Opening Radical Polymerization with Dibenzo[c,e]oxepan-5-thione for Degradable Polymer Particles DOI

Kaoru Fuji,

Yukiya Kitayama, Atsushi Harada

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Polymer-based particulate materials are useful in various industries, but nondegradable polymeric that generate microplastics pose challenges. Herein, we synthesized main-chain degradable polymer particles by radical ring-opening polymerization (rROP) a miniemulsion system (miniemulsion rROP), which dibenzo[c,e]oxepan-5-thione (DOT) was selected as the monomer. Miniemulsion rROP of DOT and typical vinyl comonomers (styrene: St n-butyl acrylate: nBA) performed. The rate significantly higher than solution rROP. feed molar ratio increased to 20 mol % with high conversion. Colloidally stable poly(St-DOT) were successfully degraded amine compounds homogeneous heterogeneously dispersed systems. Additionally, when nBA used monomer, colloidally poly(nBA-DOT) synthesized, their degradation observed n-propylamine, evidencing possibility using synthesize particles.

Language: Английский

Citations

0
Biodegradable Thermoplastic Polyurethane Pressure Sensitive Adhesives Synthesized From Polyester/Polyether Polyol DOI Open Access
Yaqi Cao, Xinyan Wang,

Liwen Sun

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

ABSTRACT Renewable and degradable pressure‐sensitive adhesives (PSAs) have emerged as promising green alternatives in the adhesive industry, addressing both petroleum resource depletion plastic pollution challenges. This work is to provide a design preparation of high‐performance biodegradable bio‐based thermoplastic polyurethane adhesive(TPU‐PSAs) solve problem that most PSAs are nondegradable, nonrenewable, nonrecyclable. Through solvent‐free one‐step polymerization process, we synthesized TPU‐PSAs using polylactide diol (PLA), polycaprolactone (PCL), polytetramethylene ether glycol (PTMEG) polyols with varying NCO/OH ratios. correlation analysis microphase separation morphology, viscoelastic response, macroscopic adhesion behavior, structure‐performance relationship system was established, which promoted rational sustainable adhesives. Notably, HS (30)/0.8 (NCO/OH = 0.8) demonstrated exceptional peel strength (7.5 N/cm) coupled substantial biodegradability (56.4% degradation within 8 weeks). Meanwhile, (30)/1 1) exhibited superior shear resistance (368 kPa on glass substrates) without requiring cross‐linking agents. These showcase unique combination tunable properties through controlled separation, positioning them candidates for applications demand biodegradability, recyclability, renewability.

Language: Английский

Citations

0