acetylenics

At Ashland, acetylenic polymers have a rich and diverse history. This exciting polymer field is enabling many highly valued applications. Commercial application fields ranging from active pharmaceutical ingredient delivery systems, functional hair styling additives, film formers in sun screens, oxidation agents in oral care, detergent dye transfer inhibitors, dialysis membranes, additives for efficient oil and gas processes as well as many other applications are all benefiting from our design excellence and commercial polymer capabilities.

How does Ashland employ this polymer field to address so many diverse applications?

By coupling our many decades of commercial excellence to careful design and compositional selection enable us to match polymer architecture, material and physical characteristics to meet the most demanding applications.

Examples of the many polymer architectures that are available at Ashland are presented below. We invite you to explore this fascinating area of science.  

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homopolymers (product examples)

 

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random copolymers (product examples, slide 1)

 

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alternating copolymers (product examples)

                                         

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graft copolymer(product examples)

 

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crosslinked copolymer(product examples)

 

 

 

 

 

 

 

  

 

 

related published innovation papers

title/description authors related technologies related business unit
The aim of this study was to develop a hydrophilic oral controlled release system (CRS) using the amorphous form of gliclazide, a BCS class II compound, listed on the WHO list of essential medicines. For this purpose, spray-dried dispersions (SDDs) of gliclazide were produced using various grades of hydroxypropyl methylcellulose acetate succinate (HPMCAS) or copovidone as carrier under fully automated conditions Lu, Zheng, Yonglai Yang, Rae-Ann Covington, Yunxia Vivian Bi, Thomas Dürig, and Reza Fassihi polysaccharides, acetylenics life sciences

Pollution damage and protection of Asian hair

Cigarette smoke was used to simulate a polluted environment and an experiment was performed to reveal how virgin and bleached hair are damaged by a polluted environment. The dry/wet combability, surface contact angle, tryptophan content, and cuticle morphology of the smoke exposed hair were evaluated, and compared to unexposed virgin hair. The results showed that pollution exposure can cause significant chemical damage to hair. In particular, virgin hair exposure to pollution can cause damage to the hair cuticles (higher wet/dry combing), protein degradation, and a more hydrophilic hair surface. The experiment also demonstrated that the styling polymer, polyimide-1 (isobutylene/dimethyl amino propyl maleimide/ethoxylated maleimide/maleic acid copolymer), can provide effective protection against such hair damage. 

 Qu, Xin, Lijuan Niu, Bert Kroon, and Linda Foltis acetylenics personal care
Hydrophobically Modified Isosorbide Dimethacrylates as a Bisphenol-A (BPA)-Free Dental Filling Material     Marie, Bilal, Raymond Clark, Tim Gillece, Seher Ozkan, Michael Jaffe, and Nuggehalli M. Ravindra acetylenics personal care
RAFT dispersion polymerization of N, N-dimethylacrylamide in a series of n-alkanes using a thermoresponsive poly (tert-octyl acrylamide) steric stabilizer     Gibson, R. R., A. Fernyhough, O. M. Musa, and S. P. Armes acetylenics core R&D
Synthesis of poly (vinyl alcohol‐graft‐hyperbranched glycerol)     King, Peter A., Ezat Khosravi, and Osama M. Musa acetylenics core R&D
Synthesis of well-defined diblock copolymer nano-objects by RAFT non-aqueous emulsion polymerization of N-(2-acryloyloxy) ethyl pyrrolidone in non-polar media     Gibson, R. R., A. Fernyhough, O. M. Musa, and S. P. Armes acetylenics core R&D
Introduction to Pyrrolidone and Caprolactam Chemistry Chenault, H. Keith acetylenics core R&D
Cocrystals, Coamorphous Phases and Coordination Complexes of γ-and ε-Lactams Hall, Amy V., Luke I. Chambers, Osama M. Musa, and Jonathan W. Steed acetylenics life sciences

Characterization of yield stress and slip behaviour of skin/hair care gels using steady flow and LAOS measurements and their correlation with sensorial attributes

Gels made with three different polymers widely used as rheology modifiers in cosmetic formulations (cross-linked poly(acrylic acid), cross-linked poly(maleic acid-alt-methyl vinyl ether) copolymer and cross-linked poly(acrylic acid-co-vinyl pyrrolidone) copolymer) were characterized by rheological and sensory evaluation methods to determine the relationship between sensorial perception and corresponding rheological parameters.

 Ozkan, S., Gillece, T.W., Senak, L. and Moore, D.J. acetylenics personal care
Flexidone™ - A New Class of Innovative PVC Plasticizers Martin Bonnet and Hasan Kaytan acetylenics personal care
Radiochromic Film as a Tool for Development of Sun Protection Duev, A., Dueva-Koganov, O. V., Shih, S., Crohn, R., Aydin, R., & Menchon, M.  acetylenics life sciences
Is It Possible to Publish a Calibration Function for Radiochromic Film?     Chan, Maria F., Lewis D., Xiang Yu acetylenics life sciences
Inclusion Compound of Efavirenz and γ-Cyclodextrin: Solid State Studies and Effect on Solubility Braga, S. S., El-Saleh, F., Lysenko, K., & Paz, F. A. A. acetylenics life sciences

Synthesis and Aqueous Solution Properties of Shape-Shifting Stimulus-Responsive Diblock Copolymer Nano-Objects. 

We report the synthesis of poly(N-(2-acryloyloxyethyl)pyrrolidone)-poly(4-hydroxybutyl acrylate) (PNAEP85-PHBAx) diblock copolymer nano-objects via reversible addition–fragmentation chain transfer (RAFT) aqueous dispersion polymerization of 4-hydroxybutyl acrylate (HBA) at 30 °C using an efficient two-step one-pot protocol.     

 Deane, O. J., Jennings, J., Neal, T. J., Musa, O. M., Fernyhough, A., & Armes acetylenics core R&D
Synthen and Pickering emulsifier performance of poly (stearyl methacrylate)–poly (N-2-(methacryloyloxy) ethyl pyrrolidone) diblock copolymer nano-objects via RAFT dispersion polymerisation in n-dodecane Cunningham, V. J., S. P. Armes, and O. M. Musa. acetylenics core R&D

Assessment of Polymeric Nanoparticles to Enhance Oral Bioavailability and Antioxidant Activity of Resveratrol

To enhance oral bioavailability and antioxidant potential of resveratrol by fabricating the resveratrol encapsulated oral eudragit® E100 based polymeric nano-delivery system.    
 

 Hasija, R., S. Chaurasia, and Swati Gupta acetylenics life sciences
Synthesis of Well-Defined Pyrrolidone-Based Homopolymers and Stimulus-Responsive Diblock Copolymers via RAFT Aqueous Solution Polymerization of 2-(N-Acryloyloxy)ethylpyrrolidone     Deane, O. J., Lovett, J. R., Musa, O. M., Fernyhough, A., & Armes, S. P. acetylenics core R&D
RAFT Aqueous Dispersion Polymerization of N-(2-(Methacryloyloxy)ethyl)pyrrolidone: A Convenient Low Viscosity Route to High Molecular Weight Water-Soluble Copolymers Cunningham, V. J., Derry, M. J., Fielding, L. A., Musa, O. M., & Armes, S. P. acetylenics core R&D
Poly(glycerol monomethacrylate)–Poly(benzyl methacrylate) Diblock Copolymer Nanoparticles via RAFT Emulsion Polymerization: Synthesis, Characterization, and Interfacial Activity Cunningham, V. J., Alswieleh, A. M., Thompson, K. L., Williams, M., Leggett, G. J., Armes, S. P., & Musa, O. M acetylenics core R&D

Fabrication of Taste-Masked Donut-Shaped Tablets Via Fused Filament Fabrication 3D Printing Paired with Hot-Melt Extrusion Techniques

The formulations without Eudragit E PO (F6) and with Eudragit E PO (F7) filaments exhibited the desired hardness with a “k” value of 48.30 ± 3.52 and 45.47 ± 3.51 g/mm3 (n = 10), respectively, and were successfully printed.

 Wang, H., Dumpa, N., Bandari, S. Durig, H acetylenics life sciences

Investigation of the interactions of enteric and hydrophilic polymers to enhance dissolution of griseofulvin following hot melt extrusion processing

Binary, ternary and quaternary dispersions containing GF, enteric polymer (Eudragit L100-55 or AQOAT-LF) and/or vinyl pyrrolidone-based polymer (Plasdone K-12 povidone or S-630 copovidone) were processed by HME.

 Ryan C Bennett, Justin M Keen, Yunxia (Vivian) Bi, Stuart Porter, Thomas Dürig, James W McGinity acetylenics life sciences

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