760978

Poly(N-isopropylacrylamide) triethoxysilane terminated

average M_n 5,000

• 동의어(들): PNIPAM silane, polyNIPAM surface modifier
• Linear Formula: (C₆H₁₁NO)_nSCH₂CH₂CH₂Si(OCH₂CH₃)₃
• UNSPSC 코드: 12162002
• NACRES: NA.23

속성

• 형태: solid
• 분자량: average M_n 5,000
• PDI: ≤2.5
• 저장 온도: 2-8°C

설명

일반 설명

Poly(N-isopropylacryamide) (PNIPAAm) is a thermoresponsive polymer. It is soluble in water below its lower critical solution temperature (LCST) (32°C) whereas it forms intramolecular hydrogen bonds thus becoming insoluble at temperatures above its LCST. PNIPAAm is functionalized with a silane coupling agent like triethoxysilane in order to reduce its surface energy thus making it hydrophobic. Triethoxysilane terminated PNIPAAm thus exhibits a switchable superhydrophobic/hydrophilic surface and are widely used as hydrophobic valves in microfluidic channels.

애플리케이션

• Used in the synthesis of microspheres which are used in drug-delivery systems.
• Used in fluidic devices, in protein affinity separation, and as cell culture substrates.

특징 및 장점

It exhibits swelling or deswelling behaviour with respect to external temperature which favours in nucleic acid adsorption and drug release applications.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable