Influence of molecular structure on the degradation mechanism of degradable polymers: in vitro degradation of poly(trimethylene carbonate), poly(trimethylene carbonate-co-caprolactone), and poly(adipic anhydride). Albertsson, Ann-Christine,Eklund, Maria. Journal of Applied Polymer Science . 1995...
Significantly, leading hydrolytically degradable polymeric nanoparticles deliver DNA to 90 ± 2% of primary human glioblastoma cells with 2 = 0.63), but has no influence on transfection for other structures (r2 = 0.01). Polymers with a reducible cystamine functional group dramatically improve siRNA ...
Relationships between molecular structure and the degradation mechanism of degradable polymers are of special interest for temporary medical applications. ... A Albertsson,M Eklund - 《Journal of Applied Polymer Science》 被引量: 241发表: 1995年 Relationships between the molecular structure and the flam...
Skeletal editing on polymers has a number of uses, including to access otherwise inaccessible polymer constructions. ‘Given the current monomer pools we have, and mechanisms that we know, we can’t otherwise build certain polymers that we would want to have,’ says Zhukhovitskiy. His group is...
For some degradable polymers, mostly polyanhydrides and poly(ortho esters), degradation and erosion occurs only at the surface of the polymer which provides a release rate that is proportional to the surface area of the drug-delivery system. With advancements in pharmaceutical sciences, it has ...
CHAPTER 5 DEGDRADATION OF POLYMERS Some “short term” medical applications of degradable polymeric biomaterials. Polymerization. REVISION POLYMERS. A molecule that consists of a large number of atoms MACROMOLECULE POLYMER A large molecule composed of smaller monomer units covalently. ...
3- 110 diene monomers as shown in Scheme 5, but we found a stereospecific 4,5 copolymerization of sor- bic esters with oxygen under convenient reaction conditions.116–118 The resulting alternating copolymers of the sorbates and oxygen can be used as a new type of degradable polymers for ...
Metal cross-linked phosphate ester compositions impart fragile progressive gel structure to a variety of oil and invert emulsion-based drilling fluids at neutral or acidic pH. The f
The paper investigates the molecular weight changes of the regenerated fibroin fiber as the fiberis dissolved with neutral salt,discusses the relationship between the aggregated state structures and themechanical properties as well as the degradable properties of the fiber. 以再生蚕丝丝素纤维为研究对象...
Relationships between molecular structure and the degradation mechanism of degradable polymers are of special interest for temporary medical applications. ... A Albertsson,M Eklund - 《Journal of Applied Polymer Science》 被引量: 241发表: 1995年 Multiblock copolymers of L-lactide and trimethylene carbon...