Crosslinked Polydicyclopentadiene Nanoparticles via Ring-Opening Metathesis Polymerization-Induced Self-Assembly Approach.
Crosslinked Polydicyclopentadiene Nanoparticles via Ring-Opening Metathesis Polymerization-Induced Self-Assembly Approach.
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DOI：
10.1002/marc.202100155
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发表时间：
2021-05
影响因子：
4.6
通讯作者：
Honggang Mei;Bingjie Zhao;Huaming Wang;Sixun Zheng
中科院分区：
文献类型：
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作者：
Honggang Mei;Bingjie Zhao;Huaming Wang;Sixun Zheng
本文报道了通过开环易位聚合（ROMP）诱导的自组装方法制备交联聚双环戊二烯（PDCPD）纳米粒子。对于ROMP，通过ε-己内酯（CL）与顺式-2-丁烯-1，4-二醇（cis-2-butene-1，4-diol）的开环聚合（ROP）来合成大分子链转移剂（Macro-CTA）。分别以氯仿、四氢呋喃、甲苯、1，4-二氧六环和N，N-二甲基乙酰胺为溶剂，在Grubbs第二代催化剂的催化下进行了ROMP反应。结果表明，交联后的PDCPD纳米粒子具有球形、圆柱形和平面形等不同的形貌，其形貌取决于大分子CTA的分子量、DCPD的浓度和溶剂的性质。聚合诱导自组装（ROMPISA）是一种利用非苯乙烯基大分子链转移剂制备交联聚合物纳米粒子的新方法。
In this communication, the preparation of crosslinked polydicyclopentadiene (PDCPD) nanoparticles via ring-opening metathesis polymerization (ROMP)-induced self-assembly approach is reported. For the ROMPs, the macromolecular chain transfer agents (Macro-CTAs) are synthesized via the ring-opening polymerization (ROP) of ε-caprolactone (CL) with cis-2-butene-1,4-diol as the initiator. The ROMPs are performed with chloroform, tetrahydrofuran, toluene, 1,4-dioxane, and N,N-dimethylacetamide as the solvents, respectively, which are catalyzed with Grubbs second generation catalyst. It is found that the crosslinked PDCPD nanoparticles are obtained with spherical, cylindrical to planar morphologies, depending on the molecular weights of Macro-CTAs, the concentrations of DCPD and the natures of solvents. The polymerization induced self-assembly (ROMPISA) by the use of a non-norbornene-based macromolecular chain transfer agent provides a new and efficient approach to prepare crosslinked polymer nanoparticles.