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中国工程物理研究院材料研究所 绵阳 621907
E-mail: tanxx@caep.cn
luowenhua@caep.cn
纸质出版日期:2024-06-20,
网络出版日期:2024-03-11,
收稿日期:2023-11-23,
录用日期:2024-01-12
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杜杰, 刘孟, 王丽萍, 郭彪, 谭欣欣, 罗文华. 环辛二烯氘代、开环易位聚合及其聚合物的固相催化加成. 高分子学报, 2024, 55(6), 738-749
Du, J.; Liu, M.; Wang, L. P.; Guo, B.; Tan, X. X.; Luo, W. H. Deuterated and ring-opening metathesis polymerization of cyclooctadiene,and solid-state catalytic addition of its polymers. Acta Polymerica Sinica, 2024, 55(6), 738-749
杜杰, 刘孟, 王丽萍, 郭彪, 谭欣欣, 罗文华. 环辛二烯氘代、开环易位聚合及其聚合物的固相催化加成. 高分子学报, 2024, 55(6), 738-749 DOI: 10.11777/j.issn1000-3304.2023.23273.
Du, J.; Liu, M.; Wang, L. P.; Guo, B.; Tan, X. X.; Luo, W. H. Deuterated and ring-opening metathesis polymerization of cyclooctadiene,and solid-state catalytic addition of its polymers. Acta Polymerica Sinica, 2024, 55(6), 738-749 DOI: 10.11777/j.issn1000-3304.2023.23273.
氘(氚)代聚合物是一类很有前景的惯性约束聚变靶材料. 为制备具有较多加氚位点的氘代聚合物,开展了环辛二烯的氘代及开环易位聚合实验研究. 对1
5-环辛二烯反应过程中间产物组分进行分析,研究了其氘代反应机理. 通过核磁共振波谱(
1
H-NMR、
2
H-NMR、
13
C-NMR)分析,表明环辛二烯氘代后的副产物为氘代环辛烯. 研究了温度、添加剂、反应时间对产物氘代率及副产物生成率的影响,获得了优化的反应条件,并制备了氘代率高达96%的氘代1
3-环辛二烯. 开展了(氘代)1
3-环辛二烯的开环易位聚合实验,其中大量连续共轭双键的存在导致聚合物结晶使得其溶解性较差. 在5 wt%的Pd/BaSO
4
与Grubbs二代催化剂的存在下,开展了聚1
3-环辛二烯、氘代1
3-环辛二烯与氘代环辛烯共聚物的固相催化加氘实验,均可加氘至接近饱和,在此过程中伴随着明显的氢同位素交换反应. 发展了一种均相固相催化氢同位素加成的方法,有望实现在已成型的氘代聚合物靶丸上直接加氚,从而制备氘-氚代聚合物靶丸.
Deuterated (tritiated) polymers are a type of promissing target materials for inertial confinement fusion. To prepare deuterated polymers with more tritium addition sites
in this work
the deuteration and ring-opening metathesis polymerization of cyclooctadiene was investigated. The mechanism for deuteration reaction of 1
5-cyclooctadiene was studied by analyzing the components of intermediate products during the reaction process. The results of magnetic resonance spectroscopy (
1
H-NMR
2
H-NMR and
13
C-NMR) showed that the by-product of deuterated cyclooctadiene was deuterated cyclooctadiene. The effects of temperature
additives and reaction time on the deuteration rate of products and the yields of by-products were studied
and then the optimized reaction conditions were obtained. Deuterated 1
3-cyclooctadiene with a high deuteration rate up to 96% was prepared. The experiment of ring-opening metathesis polymerization of (deuterated) 1
3-cyclooctadiene was carried out. The existence of a large number of continuous conjugated double bonds led to the crystallization of the polymer
resulting in a poor solubility. In the presence of 5 wt% Pd/BaSO
4
and Grubbs second generation catalyst
solid-state catalytic deuteration experiments of poly(1
3-cyclooctadiene) and the copolymers of deuterated 1
3-cyclooctadiene and deuterated cyclooctadiene were carried out. The polymer chain can be added to near saturation with
D
2
accompanied by obvious hydrogen isotope exchange reaction. A homogeneous solid-phase catalytic hydrogen isotope addition method has been developed. By this method
the well processed deuterated polymer target pellets can be
added with tritium directly
and thus the deuterium-tritiated polymer target pellets can be prepared.
氘代机理氘代聚合物开环易位聚合固相催化氘化
Deuteration mechanismDeuterated polymerRing-opening metathesis polymerizationSolid-state catalytic deuteration
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李新娟, 单雯雯, 贾献彬, 罗炫, 杜凯, 张林. 全氘代聚乙烯泡沫的制备与表征. 核化学与放射化学, 2011, 33(5), 314-317. doi:10.3724/SP.J.1105.2011.10085http://dx.doi.org/10.3724/SP.J.1105.2011.10085
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Ren G.; Yan J.; Liu J.; Lan K.; Chen Y. H.; Huo W. Y.; Fan Z.; Zhang X.; Zheng J.; Chen Z.; Jiang W.; Chen L.; Tang Q.; Yuan Z.; Wang F.; Jiang S.; Ding Y.; Zhang W.; He X. T. Neutron generation by laser-driven spherically convergent plasma fusion. Phys. Rev. Lett., 2017, 118(16), 165001. doi:10.1103/physrevlett.118.165001http://dx.doi.org/10.1103/physrevlett.118.165001
Liu M. F.; Zheng Y. Q.; Chen Q.; Wang Y. G.; Liu Y. Y.; Li J.; Li J.; Huang Y. W.; Yin Q. Controllable production of deuterated polymer beads for ICF. J. Nucl. Mater., 2020, 535, 152159. doi:10.1016/j.jnucmat.2020.152159http://dx.doi.org/10.1016/j.jnucmat.2020.152159
左太森, 马长利, 韩泽华, 李雨晴, 李明涛, 程贺. 小角中子散射技术及其在大分子结构表征中的应用. 高分子学报, 2021, 52(9), 1192-1205. doi:10.11777/j.issn1000-3304.2020.20242http://dx.doi.org/10.11777/j.issn1000-3304.2020.20242
Li L. W.; Jakowski J.; Do C.; Hong K. L. Deuteration and polymers: rich history with great potential. Macromolecules, 2021, 54(8), 3555-3584. doi:10.1021/acs.macromol.0c02284http://dx.doi.org/10.1021/acs.macromol.0c02284
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张林, 唐永健, 李秀琴, 郑永铭, 高文德, 刘维铭, 谢如刚. 全氘代聚苯乙烯的合成与表征综述. 材料导报, 1997, 11(3), 145-147.
Tan X. X.; Du J.; Liu Y. L.; Ba J. W.; Yang X. Y.; Yang X. W.; Liu M. F.; Luo W. H. A convenient strategy to prepare supramolecular deuterated polymers. Polymer, 2022, 251, 124891. doi:10.1016/j.polymer.2022.124891http://dx.doi.org/10.1016/j.polymer.2022.124891
Du J.; Tan X. X.; Wang L. P.; Qin C.; Luo W. H. Preparation of a deuterated-tritiated polymer via solid state catalytic tritiation of deuterated polycyclooctene. Fusion Eng. Des., 2023, 188, 113415. doi:10.1016/j.fusengdes.2022.113415http://dx.doi.org/10.1016/j.fusengdes.2022.113415
Du J.; Tan X. X.; Wang L. P.; Qin C.; Chen X. Q.; Wu Z. G.; Guo B.; Luo W. H. Solid state catalytic tritiation of deuterated polybutadiene through isotopic exchange and tritium addition. Fusion Eng. Des., 2021, 170, 112518. doi:10.1016/j.fusengdes.2021.112518http://dx.doi.org/10.1016/j.fusengdes.2021.112518
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