Experimental Section: Synthesis of the scC02 Soluble Stabilizer. The s的简体中文翻译

Experimental Section: Synthesis of

Experimental Section: Synthesis of the scC02 Soluble Stabilizer. The stabilizer synthesis was adapted from that of Pilati et al.18 beginning with ROP of e-CL from the terminal hydroxyl groups of the "C02-philic" PFPE macromonomer, inaccordance with the activated chain end mechanism proposed by Penczek19 (Scheme 1).Fluorolink DIO (10 g) was reacted in bulk with c-CL(13.5 mL, PFPE•.CL molar ratio) at 120 oc for 18 husing Sn(Oct)2 (0.5 mL) catalyst. The terminal dihy-droxyl groups of the polymer were then end capped withacetyl chloride, to improve solubility in scC0220 and to prevent the stabilizer acting as an initiator during thepoly merization of L-lactide. IH NMR analysis showed that the hydroxyl end groups had fully reacted. SECanalysis of this PCL—PFPE—PCL stabilizer exhibits a single peak, demonstrating no homopolymerization of PCL, and PDI was estimated against polystyrene standards to be 1.27, indicating that propagation was controlled.
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实验部分:scCO 2可溶性稳定剂的合成。根据Penczek19(方案1)提出的活化链末端机理<br><br>,从Pilati等[ 18]的方法出发,根据e-CL的ROP从“亲C02” PFPE大分子单体的末端羟基合成了稳定剂。<br>。使用Sn(Oct)2(0.5 mL)催化剂<br>使Fluorolink DIO(10 g)与c-CL(13.5 mL,PFPE•.CL摩尔比)在120℃下反应18小时<br>。然后用<br>乙酰氯将聚合物的末端二氢-二甲基基团封端,以改善在scCO 2 20中的溶解度并防止在<br><br>L-丙交酯的聚合过程中稳定剂充当引发剂。1 H NMR分析表明羟基端基已经完全反应。美国证券交易委员会<br>该PCL-PFPE-PCL稳定剂的分析显示出一个单峰,表明PCL没有均聚,相<br><br>对于聚苯乙烯标准品,PDI 估计为1.27,表明扩散得到了控制。
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结果 (简体中文) 2:[复制]
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Experimental Section: Synthesis of the scC02 Soluble Stabilizer. The stabilizer synthesis was adapted from that of Pilati et <br><br>al.18 beginning with ROP of e-CL from the terminal hydroxyl groups of the "C02-philic" PFPE macromonomer, in<br>accordance with the activated chain end mechanism proposed by Penczek19 (Scheme 1).<br>Fluorolink DIO (10 g) was reacted in bulk with c-CL(13.5 mL, PFPE•.CL molar ratio) at 120 oc for 18 h<br>using Sn(Oct)2 (0.5 mL) catalyst. The terminal dihy-droxyl groups of the polymer were then end capped with<br>acetyl chloride, to improve solubility in scC0220 and to prevent the stabilizer acting as an initiator during thepoly merization <br><br>of L-lactide. IH NMR analysis showed that the hydroxyl end groups had fully reacted. SEC<br>analysis of this PCL—PFPE—PCL stabilizer exhibits a single peak, demonstrating no homopolymerization of PCL, and PDI was <br><br>estimated against polystyrene standards to be 1.27, indicating that propagation was controlled.
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结果 (简体中文) 3:[复制]
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实验部分:scC02可溶性稳定剂的合成。以Pilati-et为原料合成稳定剂<br>al.18从“亲二氧化碳”PFPE大分子单体末端羟基的e-CL的ROP开始,in<br>根据Penczek19提出的激活链末端机构(方案1)。<br>在120℃下,将氟环二氧化二钒(10 g)与c-CL(13.5 mL,PFPE•.CL摩尔比)反应18 h<br>使用Sn(Oct)2(0.5ml)催化剂。聚合物的末端二羟基被<br>乙酰氯,以提高在scC0220中的溶解度,并防止稳定剂在聚合过程中充当引发剂<br>丙交酯。核磁共振氢谱分析表明羟基末端已完全反应。秒<br>分析表明,该PCL-PFPE-PCL稳定剂为单峰,不存在PCL均聚现象,PDI为<br>根据聚苯乙烯标准估计为1.27,表明繁殖受到控制。<br>
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