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Ring-Opening Polymerization of ε-Caprolactone Catalyzed by Rare Earth Triflates
关键字：ε-caprolactone, poly(ε-caprolactone), rare earth triflate, ring-opening polymerization, star polymers, trimethylol propane
The ring-opening polymerization of ε-caprolactone using lanthanide triflates [Ln(OTf)3] (Ln= Nd, Er, La) as water-tolerant catalysts has been successfully carried out. The influences of rare earth element, catalyst concentration, polymerization time...
http://www.polymer.cn/research/dis_info8819 |
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Journal of Polymer Science Part A: Polymer Chemistry 2012, 50(3), 571
关键字：ring-opening polymerization (ROP); reversible addition-fragmentation chain transfer (RAFT); controlled/“living” radical polymerization; star polymer
Reversible addition-fragmentation chain transfer (RAFT) polymerization is a more robust and versatile approach than other living free radical polymerization methods for synthesis of well-defined homo-, gradient, block, star-shaped and more complex structural polymers, like micro(nano)gels and polymer brushes. Thus the resultant polymers with thiocarbonylthio-terminated groups are readily tailored ...
http://www.polymer.cn/research/sy_info14739 |
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Journal of Polymer Science Part A: Polymer Chemistry 2012, 50(3), 571
关键字：controlled ring-opening polymerization (CROP); reversible addition-fragmentation chain transfer (RAFT); "living"/controllable polymerization; star block copolymer;
Reversible addition-fragmentation chain transfer (RAFT) polymerization is a more robust and versatile approach than other living free radical polymerization methods for synthesis of well-defined homo-, gradient, block, star-shaped and more complex structural polymers, like micro(nano)gels and polymer brushes. Thus the resultant polymers with thiocarbonylthio-terminated groups are readily tailored ...
http://www.polymer.cn/research/sy_info14683 |
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Ring-Opening Polymerization of ε-Caprolactone Catalyzed by Rare Earth Triflates
关键字：ε-caprolactone, poly(ε-caprolactone), rare earth triflate, ring-opening polymerization, star polymers, trimethylol propane
The ring-opening polymerization of ε-caprolactone using lanthanide triflates [Ln(OTf)3] (Ln= Nd, Er, La) as water-tolerant catalysts has been successfully carried out. The influences of rare earth element, catalyst concentration, polymerization time...
http://www.polymer.cn/research/dis_info8819 |
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Neutral lutetium complex/polyamine mediated immortal ring-opening polymerization of rac-lactide: facile synthesis of well-defined hydroxyl-end and amide-core stereoregular star polylactide
A
highly efficient strategy for synthesizing hydroxyl-end and amide-core, highly
stereoregular, star-shaped polylactide was established by employing a lutetium
complexvia immortal ROP of rac-lactide with a polyamine
as the chain transfer agent.
http://www.polymer.cn//ss/dongmeicui/publicationsshow_11967.html |
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Synthesis of Star-shaped Poly(ε-caprolactone)-b- poly(L-lactide)-b- poly(D,L-lactide-co-glycolid) from Hexakis[p-(hydroxymethyl)phenoxy]cyclotriphosphazene Initiator via Ring-Opening Polymerization
Hexaarmed star-shaped hydroxyl-terminated
poly(e-caprolactone) (PCL) was successfully synthesized via
the ring-opening polymerization of e-caprolactone (CL) with
hexakis[p-(hydroxymethyl)phenoxy]cyclotriphosphazene initiator
and stannous octoate catalyst in bulk. The star-shaped
PCL with hydroxy end groups could be used as amacroinitiator
for block copolymerization with L-lactide (L-LA). The...
http://www.polymer.cn//ss/yuanjinying/publicationsshow_3334.html |
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Synthesis and characterization of well-defined ABC 3-Miktoarm star-shaped terpolymers based on poly(styrene), poly(ethylene oxide), and poly(caprolactone) by combination of the living anionic polymerization with the ring-opening polymerization.
A series of well-defined ABC 3-Miktoarm star-shaped terpolymers [Poly(styrene)-Poly(ethylene oxide)-Poly(e-caprolactone)](PS-PEO-PCL) with different molecular weight was synthesized by combination of the ‘‘living’’ anionic polymerization with the ring-opening polymerization (ROP) using macro-initiator strategy. Firstly, the ‘‘living’’ poly(styryl)lit...
http://www.polymer.cn//ss/wangguowei/publicationsshow_3017.html |
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Confined crystallization of poly(DL-lactide) -b-poly(ethylene oxide) block copolymers:Molecular architecture influence
关键字：confined crystallization，chain end restriction，four-armed star-shaped poly(DL-lactide)-b-poly(ethylene oxide)，linear poly(D, L-lactide)-b-poly(ethylene oxide)
Recently, considerable attention has been paid to confined polymer crystallization. Both physical and chemical methods have been used to design various models of confined environments for polymers to further investigate the mechanism of&nbs...
http://www.polymer.cn/research/dis_info7466 |
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Confined crystallization of poly(DL-lactide) -b-poly(ethylene oxide) block copolymers:Molecular architecture influence
关键字：confined crystallization，chain end restriction，four-armed star-shaped poly(DL-lactide)-b-poly(ethylene oxide)，linear poly(D, L-lactide)-b-poly(ethylene oxide)
Recently, considerable attention has been paid to confined polymer crystallization. Both physical and chemical methods have been used to design various models of confined environments for polymers to further investigate the mechanism of&nbs...
http://www.polymer.cn/research/dis_info7466 |
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新加坡科技研究局（A*STAR）Xian Jun Loh教授课题组：生物可降解热凝胶高分子的研究进展综述
关键字：生物降解，热凝胶
生物医学领域中，生物材料的进步是解决复杂医学问题的基石。随着生物材料越来越复杂，它们对外界刺激的响应也越来越灵敏。多种新型的智能生物材料顺势而生。智能生物材料会对环境pH、温度、光等变化进行响应，在外界刺激下会产生一些可以观察到的性质的变化。这些变化包括形状、溶解度、表面特性和自组装或溶胶-凝胶转变能力的改变。热凝胶是一种对体温范围内的温度变化作出响应的材料。热敏性是热凝胶材料的一个独...
http://www.polymer.cn/sci/kjxw15066.html |
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