Polycaprolactone hmoov CAS 24980-41-4

Polycaprolactone hmoov CAS 24980-41-4yog ib tug semi-crystalline polymer, chemically synthesized biodegradable polymer. Nws cov txheej txheem rov ua dua tshiab muaj tsib pawg uas tsis yog-polar methylene-CH2 pawg. Kev sib xyaw nrog cov khoom xws li cov hmoov txhuv nplej siab tuaj yeem tsim cov khoom siv biodegradable.

Polycaprolactone yog biodegradable polymer, tsis yog - lom, biodegradable nyob rau hauv av, nrog miscibility zoo heev, mechanical compatibility nrog ntau polymers, thiab zoo adhesion rau ntau matrices. Nws yog siv los ua kev pabcuam extrusion, pwm lubricant, tso tawm tus neeg sawv cev, pigment thiab muab tub lim dispersant, thiab hauv ntu polyester ntawm polyurethanes thiab thaiv polyesters.

Raws li biodegradable polymer, polycaprolactone yog dav siv nyob rau hauv biomedical teb. Nws qhov degradation feem ntau yog tshwm sim los ntawm hydrolysis ntawm cov saw tseem ceeb ester bonds, thiab tuaj yeem ua rau muaj kev cuam tshuam los ntawm cov yam ntxwv xws li kub, pH, enzymes, thiab dawb radicals. Nyob rau hauv ib puag ncig, nws yog maj mam degraded los ntawm cov kab mob xws li fungi, kab mob, thiab algae, thaum hydrolysis, oxidation, enzymatic tshua, thiab pH catalysis kuj txhawb nws degradation. Vim tias cov qauv ester tau yooj yim decomposed los ntawm cov kab mob los yog cov enzymes, nrog rau cov khoom kawg yog CO2 thiab H2O, polycaprolactone tau yooj yim rov siv dua, tso cai rau kev tswj kom tsim nyog ntawm ib puag ncig cov pa phem. Nyob rau hauv thawj theem ntawm degradation, qhov hnyav molecular ntawm PCL txo, thiab nws cov qauv macroscopic decomposes rau hauv me me polymer fragments uas tuaj yeem ua tiav metabolized los ntawm cov hlwb lossis cov kab mob. Nws lub davhlau ya nyob twg hydroxyl pawg txhawb nqa qhov kawg- pab pawg degradation, ua rau muaj kev txo qis hauv cov℃ntawm polymerization. Dawb radicals tsim los ntawm o tuaj yeem tshem tawm cov hydrogen los ntawm PCL, ua rau cov saw tawg thiab ua kom nrawm dua. Thermoinduced PCL degradation yog synergistically txhawb los ntawm qhov kawg -pab pawg decomposition, random saw scission, thiab dawb radical{11}}mediated fragmentation. Tsis tas li ntawd, esterases thiab lipases kuj tseem tuaj yeem koom nrog hauv PCL degradation txheej txheem los ntawm enzymatic hydrolysis.