1362363 Photodegradable polymers GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO 27 April 1971 [27 April 1970 14 May 1970] 20101/70 and 23387/70 Heading C3P Fabricated photodegradable articles comprise a photodegradable polymer of a vinylidene unsaturated monomer and containing in its polymeric backbone ...
Hydrolytic degradation of polymers Poly(2-hydroxy-1-(4-(3-hydroxypropoxy)phenyl)ethanonecarbonate)-co- poly((poly(ethylene glycol) diol) carbonate) copolymers were dissolved in CHCl 3 . The solution was stirred for a few hours to allow the polymer to ...
Fast Photodegradable Block Copolymer Micelles for Burst Release Synthesis of photodegradable hydrogels as dynamically tunable cell culture platforms Copper-free click chemistry for the in situ crosslinking of photodegradable star polymers. Photooxidation and biodegradation of commercial photodegradable polyethylenes...
To unravel the microstructures of the keto-modified PEs formed, polymers were also prepared using 13CO as the comonomer to enable 13C NMR analysis. The keto units are largely isolated, with a minor portion in close proximity to one another. The relative amount of alternating to non-alternating...
4) biodegradable polymers 生物降解聚合物 1. Development of biodegradable polymers as drug carriers; 可生物降解聚合物作为药物载体的应用进展 2. Biodegradable polymers have attracted much attention in biomedical,packaging,textile and electronic fields due to the degradability into harmless products after ...
A glimpse of light is all it takes: Polymers that undergo main‐chain scission at remarkably low photolysis energies were developed as efficient photodegradable substrates for safe laser‐mediated cell detachment and patterning. The polymers, which contain acetal or ketal units in their backbone along...
I Kyrikou,D Briassoulis - 《Journal of Polymers & the Environment》 被引量: 358发表: 2007年 Cellulose ester compositions and shaped articles A composition comprises a cellulose acetate or other cellulose ester, and an anatase-type titanium oxide having (1) a specific surface area of not less...
Photodegradable polymers comprising substituted furan functionality or ring opened derivatives thereof and thermoplastic articles formed therefrom. Inventors: Dais, Virginia A. (Midland, MI) Application Number: 07/603584 Publication Date: 11/17/1992 ...
star polymersROMPThis report describes the synthesis of miktoarm brush-arm star polymers (BASPs) from branched and linear norbornene-terminated macromonomers (MMs) via the brush-first ring-opening metathesis polymerization (ROMP) method. First, a polystyrene (PS)-branch-poly(lactic acid) (PLA) ...
Condensation polymers such as polyamides polyesters, polyurethanes, polyepoxides, polyamide esters, polyureas and polyamino-acids which are photodegradable on exposure to U.V. light, due to the presence in the copolymer backbone of units of structure ##STR1## in small amounts. ...