نتایج جستجو برای: poly s caprolactone
تعداد نتایج: 784422 فیلتر نتایج به سال:
A series of approximately 50:50 mol % poly(L-lactide-co-ε-caprolactone) copolymers were synthesized by bulk copolymerization of L-lactide (LL) and ε-caprolactone (CL) using stannous octoate (Sn(Oct) 2 ) and diethylene glycol (DEG) as the initiating system. The resulting P(LL-co-CL) copolymers were characterized by various analytical techniques including dilute-solution viscometry, GPC, H/C NMR ...
برهمکنش پورفیرازین کاتیونی تتراکیس(n,n,n,n 3و4-تتراپیریدینو) کبالت(ii) (co(tmtppa))با پلی-نوکلئوتیدهای سنتزی: poly(g-c) و poly(a-t) و dna غده تیموس گوساله در بافر فسفات 5/7 میلی مولار با ph 2/7 با استفاده از تکنیک های اسپکتروسکوپی جذب نوری و فلورسانس مطالعه شده است. کاهش جذب و جابجایی قرمز در طول .موج طیف uv-vis پورفیرازین به دلیل برهمکنش با هر دو پلی نوکلئوتیدهای poly(g-c) و poly(a-t) مشاهده...
Fludrocortisone is a known corticosteroid used to control the amount of sodium and fluids in body. Fludrocortisone act by decreasing the amount of sodium that is excreted in your urine. It is indicated to take orally and it is recommended not to stop Fludrocortisone treatment without Physician consent as sudden stoppage leads to several moderate to severe adverse effects. There are several mode...
Catalyzed Ring-Opening Polymerization (ROP) of lactones, such as c-caprolactone and ii-vnlerolactone. ha\ been investigated for preparing aliphatic polycsrer-grafted corn starch compositions. The polynieri7ntion has been carried out either i n bulk (without solvent) or in I0 wtQ grunular starch i n toluene \uspension. aftcr adequate activation of thc starch wrface arnylosc/amylopectin hydroxyl ...
The paper explored the catalytic activity of a cell debris self-immobilized thermophilic lipase for polyester synthesis, using the ring-opening polymerization of ε-caprolactone as model. Effects of biocatalyst concentration, temperature, and reaction medium on monomer conversion and product molecular weight were systematically evaluated. The biocatalyst displayed high catalytic activity at high...
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