24小时热门版块排行榜    

查看: 632  |  回复: 6
【奖励】 本帖被评价5次,作者nowitzki_ci增加金币 4

[资源] Macromolecules最新上线文章:Janus Polymerization

Janus Polymerization

ABSTRACT: Is it possible to combine cationic and (coordinated) anionic ring-opening polymerizations (CROP and AROP) into a unimolecular chain? In this work, we design polymerizations of ε -caprolactone (CL) and tetrahydrofuran (THF) using a single catalytic system of lutetium tri fl ate/propylene oxide (Lu(OTf) 3 /PO) in which a cationic copolymerization of THF with CL and an AROP of CL perform at two chain ends of a growing chain. Kinetic and mechanistic studies demonstrate that the two chain-growth ROPs which have no mutual interference up to 90% of CL conversion keep a living manner producing diblock copolymers of PCL-b-P(THF-co-CL) with narrow polydispersities below 1.2.
Afterward, the depletion of CL triggers a fi nal step-growth polymerization via intermolecular coupling reaction of cationic and
anionic chain ends, developing multiblock polyester − polyether elastomers of [PCL-b-P(THF-co-CL)] m . A concept of “ Janus
polymerization ” is de fi ned as a combination of cationic and anionic polymerizations on the two ends of a single growing chain,
involving an initially living chain-growth polymerization and a subsequently self-triggered step-growth polycondensation.Macromolecules最新上线文章:Janus Polymerization
回复此楼

» 本帖附件资源列表

  • 欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
    本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
  • 附件 1 : ma500173c.pdf
  • 2014-03-18 18:00:39, 1.62 M

» 猜你喜欢

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
简单回复
_S_B_2楼
2014-03-18 19:38   回复  
五星好评  顶一下,感谢分享!
2014-03-24 17:44   回复  
顶一下,感谢分享!
2014-05-04 06:58   回复  
五星好评  顶一下,感谢分享!
2014-05-04 17:11   回复  
五星好评  顶一下,感谢分享!
2014-11-12 18:37   回复  
五星好评  顶一下,感谢分享!
p3ht7楼
2018-07-09 17:29   回复  
五星好评  顶一下,感谢分享!
相关版块跳转 我要订阅楼主 nowitzki_ci 的主题更新
☆ 无星级 ★ 一星级 ★★★ 三星级 ★★★★★ 五星级
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 化学308分求调剂 +3 你好明天你好 2026-03-23 3/150 2026-03-23 20:11 by macy2011
[考研] 0703化学求调剂 +4 奶油草莓. 2026-03-22 5/250 2026-03-23 19:37 by pswait
[考研] 一志愿上海交大生物与医药专硕324分,求调剂 +5 jiajunX 2026-03-22 5/250 2026-03-23 18:07 by YMU施老师
[考研] 328求调剂 +4 LHHL66 2026-03-23 4/200 2026-03-23 14:55 by lbsjt
[考研] 307求调剂 +3 余意卿 2026-03-21 3/150 2026-03-23 10:32 by Iveryant
[考研] 276求调剂 +3 YNRYG 2026-03-21 4/200 2026-03-23 08:31 by 醉在风里
[考研] 352求调剂 +3 大米饭! 2026-03-22 3/150 2026-03-22 23:28 by king123!
[考研] 0854电子信息求调剂 +3 α____ 2026-03-22 3/150 2026-03-22 21:28 by zhq0425
[考研] 308求调剂 +3 墨墨漠 2026-03-21 3/150 2026-03-22 16:54 by i_cooler
[考研] 275求调剂 +6 shansx 2026-03-22 8/400 2026-03-22 15:27 by barlinike
[考研] 299求调剂 +5 shxchem 2026-03-20 7/350 2026-03-21 17:09 by ColorlessPI
[考研] 268求调剂 +9 简单点0 2026-03-17 9/450 2026-03-21 15:37 by lature00
[考研] 22 350 本科985求调剂,求老登收留 +3 李轶男003 2026-03-20 3/150 2026-03-21 13:28 by 搏击518
[考研] 一志愿华中科技大学,080502,354分求调剂 +5 守候夕阳CF 2026-03-18 5/250 2026-03-21 01:06 by JourneyLucky
[考研] 材料学硕297已过四六级求调剂推荐 +11 adaie 2026-03-19 11/550 2026-03-20 21:30 by laoshidan
[考研] 086500 325 求调剂 +3 领带小熊 2026-03-19 3/150 2026-03-20 18:38 by 尽舜尧1
[考研] 0703化学调剂 +4 18889395102 2026-03-18 4/200 2026-03-19 16:13 by 30660438
[考研] 085600材料与化工求调剂 +6 绪幸与子 2026-03-17 6/300 2026-03-19 13:27 by houyaoxu
[考博] 26博士申请 +3 1042136743 2026-03-17 3/150 2026-03-17 23:30 by 轻松不少随
[硕博家园] 湖北工业大学 生命科学与健康学院-课题组招收2026级食品/生物方向硕士 +3 1喜春8 2026-03-17 5/250 2026-03-17 17:18 by ber川cool子
信息提示
请填处理意见