Block Copolymer Pressure-Sensitive Adhesives Derived from Fatty Acids and Triacetic Acid Lactone

2020 ◽  
Vol 2 (7) ◽  
pp. 2719-2728
Author(s):  
Hussnain Sajjad ◽  
William B. Tolman ◽  
Theresa M. Reineke
Keyword(s):  
Fatty Acids ◽  
Block Copolymer ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive ◽  
Acid Lactone ◽  
Triacetic Acid Lactone

Contact Time and Temperature Dependencies of Tack in Polyacrylic Block Copolymer Pressure-Sensitive Adhesives Measured by the Probe Tack Test

2012 ◽  
Vol 26 (1-3) ◽  
pp. 231-249 ◽  
Author(s):  
Yoshinobu Nakamura ◽  
Keigo Imamura ◽  
Keiko Ito ◽  
Shinji Nakano ◽  
Akemi Sueoka ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Contact Time ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive

Adhesion properties of polyacrylic block copolymer pressure‐sensitive adhesives and analysis by pulse NMR and AFM force curve

2019 ◽  
Vol 136 (29) ◽  
pp. 47791 ◽  
Author(s):  
Shun Okada ◽  
Yusuke Kashihara ◽  
Tomoyasu Hirai ◽  
Syuji Fujii ◽  
Yoshinobu Nakamura ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Force Curve ◽  
Adhesion Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive

scholarly journals Robust, universal, and persistent bud secretion adhesion in horse-chestnut trees

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Dagmar Voigt ◽  
Jaekang Kim ◽  
Anne Jantschke ◽  
Michael Varenberg
Keyword(s):  
Fatty Acids ◽  
Chemical Properties ◽  
Horse Chestnut ◽  
Adhesive Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive ◽  
Nuclear Magnetic Resonance Spectra ◽  
Component Material ◽  
Dry Out

Abstract Buds of horse-chestnut trees are covered with a viscous fluid, which remains sticky after long-term exposure to heat, frost, radiation, precipitation, deposition of aerosols and particles, attacks by microbes and arthropods. The present study demonstrates that the secretion does not dry out under arid conditions, not melt at 50 °C, and not change significantly under UV radiation or frost at a microscopic level. It is slightly swellable under wet conditions; and, it universally wets and adheres to substrates having different polarities. Measured pull-off forces do not differ between hydrophilic and lipophilic surfaces, ranging between 58 and 186 mN, and resulting in an adhesive strength up to 204 kPa. The mechanical and chemical properties of secretion resemble those of pressure-sensitive adhesives. The Raman, infrared, and nuclear magnetic resonance spectra show the clear presence of saturated aliphatic hydrocarbons, esters, free carboxylic acids, as well as minor amounts of amides and aromatic compounds. We suggest a multi-component material (aliphatic hydrocarbon resin), including alkanes, fatty acids, amides, and tackifying terpenoids embedded in a fluid matrix (fatty acids) comprising nonpolar and polar portions serving the universal and robust adhesive properties. These characteristics matter for ecological-evolutionary aspects and can inspire innovative designs of multifunctional, biomimetic pressure-sensitive adhesives and varnishes.

Block Copolymer Based Pressure Sensitive Adhesives Modified with PPO for Increased Service Temperatures

2000 ◽  
Vol 73 (1) ◽  
pp. 65-85 ◽  
Author(s):  
Rong-Ming Ho ◽  
David W. Giles ◽  
Christopher W. Macosko ◽  
Frank S. Bates
Keyword(s):  
Block Copolymer ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive

scholarly journals Energy Absorbability of Pressure Sensitive Adhesives Consisting of Acryl Block Copolymer/Tackifier Systems

2008 ◽  
Vol 44 (3) ◽  
pp. 97-104
Author(s):  
Hajime KISHI ◽  
Yutaka NOMURA ◽  
Atsushi NAGAO ◽  
Satoshi MATSUDA ◽  
Atsushi MURAKAMI ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive
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