Citation: . POLYMETHYLMETHACRYLATE FILMS IN THE STATE OF HIGH GLOBAL CHAIN ORIENTATION BUT NEARLY RANDOM SEGMENTAL ORIENTATION*[J]. Chinese Journal of Polymer Science, ;1999, 17(3): 215-220. shu

POLYMETHYLMETHACRYLATE FILMS IN THE STATE OF HIGH GLOBAL CHAIN ORIENTATION BUT NEARLY RANDOM SEGMENTAL ORIENTATION*

Received Date: 12 December 1997

PMMA films in the high global chain orientation and nearly random segmental orientation(GOLR) state were prepared by uni-axially drawing at temperatures 20～30℃ above its glass transitiontempefature, T_g, and their isotropic and anisotropic properties were studied. Experimental results show thatthis kind of amorphous state, the GOLR state, is nearly isotropic in optical birefringence, IR-dichroism andX-ray diffraction patterns, but is very anisotropic in behaviors of thermal expansion, solvent-swelling and stress-strain.
1. [1]
  Zheng Zhao , Ben Zhong Tang . An efficient strategy enabling solution processable thermally activated delayed fluorescence emitter with high horizontal dipole orientation. Chinese Journal of Structural Chemistry, 2024, 43(6): 100270-100270. doi: 10.1016/j.cjsc.2024.100270
2. [2]
  Hui Zhang , Rong Feng , Wanyi Yu , Hongbei Wei , Tianhong Wu , Peng Zhang , Wenhai Bian , Xin Li , Di Gao , Guojun Weng , Zhe Yang , Tony D. James , Xiaolong Sun . Evaluating the global thiols redox state in living cells using a reducing sulfur species responsive fluorescence switching platform. Chinese Chemical Letters, 2025, 36(4): 110528-. doi: 10.1016/j.cclet.2024.110528
3. [3]
  Liwen Wang , Boyang Wang , Siyu Lu , Shubo Lv , Xiaoli Qu . High quantum yield yellow emission carbon dots for the construction of blue light blocking films. Chinese Chemical Letters, 2025, 36(2): 110497-. doi: 10.1016/j.cclet.2024.110497
4. [4]
  Wenli Xu , Yingzhao Zhang , Rui Wang , Chenyang Liu , Jialin Liu , Xiangyu Huo , Xinying Liu , He Zhang , Jianxu Ding . In-situ passivating surface defects of ultra-thin MAPbBr3 perovskite single crystal films for high performance photodetectors. Chinese Journal of Structural Chemistry, 2025, 44(1): 100454-100454. doi: 10.1016/j.cjsc.2024.100454
5. [5]
  Xin Li , Ling Zhang , Yunyan Fan , Shaojing Lin , Yong Lin , Yongsheng Ying , Meijiao Hu , Haiying Gao , Xianri Xu , Zhongbiao Xia , Xinchuan Lin , Junjie Lu , Xiang Han . Carbon interconnected microsized Si film toward high energy room temperature solid-state lithium-ion batteries. Chinese Chemical Letters, 2025, 36(2): 109776-. doi: 10.1016/j.cclet.2024.109776
6. [6]
  Hengying Xiang , Nanping Deng , Lu Gao , Wen Yu , Bowen Cheng , Weimin Kang . 3D core-shell nanofibers framework and functional ceramic nanoparticles synergistically reinforced composite polymer electrolytes for high-performance all-solid-state lithium metal battery. Chinese Chemical Letters, 2024, 35(8): 109182-. doi: 10.1016/j.cclet.2023.109182
7. [7]
  Hui Liu , Xiangyang Tang , Zhuang Cheng , Yin Hu , Yan Yan , Yangze Xu , Zihan Su , Futong Liu , Ping Lu . Constructing multifunctional deep-blue emitters with weak charge transfer excited state for high-performance non-doped blue OLEDs and single-emissive-layer hybrid white OLEDs. Chinese Chemical Letters, 2024, 35(10): 109809-. doi: 10.1016/j.cclet.2024.109809
8. [8]
  Rui Liu , Jinbo Pang , Weijia Zhou . Monolayer water shepherding supertight MXene/graphene composite films. Chinese Journal of Structural Chemistry, 2024, 43(10): 100329-100329. doi: 10.1016/j.cjsc.2024.100329
9. [9]
  Hang Meng , Bicheng Zhu , Ruolun Sun , Zixuan Liu , Shaowen Cao , Kan Zhang , Jiaguo Yu , Jingsan Xu . Dynamic photoluminescence switching of carbon nitride thin films for anticounterfeiting and encryption. Chinese Journal of Structural Chemistry, 2024, 43(10): 100410-100410. doi: 10.1016/j.cjsc.2024.100410
10. [10]
  Qihang Wu , Hui Wen , Wenhai Lin , Tingting Sun , Zhigang Xie . Alkyl chain engineering of boron dipyrromethenes for efficient photodynamic antibacterial treatment. Chinese Chemical Letters, 2024, 35(12): 109692-. doi: 10.1016/j.cclet.2024.109692
11. [11]
  Huiju Cao , Lei Shi . sp¹-Hybridized linear and cyclic carbon chain. Chinese Chemical Letters, 2025, 36(4): 110466-. doi: 10.1016/j.cclet.2024.110466
12. [12]
  Zhenjie Yang , Chenyang Hu , Xuan Pang , Xuesi Chen . Sequence design in terpolymerization of ε-caprolactone, CO₂ and cyclohexane oxide: Random ester-carbonate distributions lead to large-span tunability. Chinese Chemical Letters, 2024, 35(5): 109340-. doi: 10.1016/j.cclet.2023.109340
13. [13]
  Xiujuan Wang , Yijie Wang , Luyun Cui , Wenqiang Gao , Xiao Li , Hong Liu , Weijia Zhou , Jingang Wang . Coordination-based synthesis of Fe single-atom anchored nitrogen-doped carbon nanofibrous membrane for CO₂ electroreduction with nearly 100% CO selectivity. Chinese Chemical Letters, 2024, 35(12): 110031-. doi: 10.1016/j.cclet.2024.110031
14. [14]
  Yifei Zhang , Yuncong Xue , Laiwei Gao , Rui Liao , Feng Wang , Fei Wang . Merging non-covalent and covalent crosslinking: En route to single chain nanoparticles. Chinese Chemical Letters, 2024, 35(6): 109217-. doi: 10.1016/j.cclet.2023.109217
15. [15]
  Haoran Shi , Jiaxin Wang , Yuqin Zhu , Hongyang Li , Guodong Ju , Lanlan Zhang , Chao Wang . Highly selective α-C(sp³)-H arylation of alkenyl amides via nickel chain-walking catalysis. Chinese Chemical Letters, 2024, 35(7): 109333-. doi: 10.1016/j.cclet.2023.109333
16. [16]
  Yao HUANG , Yingshu WU , Zhichun BAO , Yue HUANG , Shangfeng TANG , Ruixue LIU , Yancheng LIU , Hong LIANG . Copper complexes of anthrahydrazone bearing pyridyl side chain: Synthesis, crystal structure, anticancer activity, and DNA binding. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 213-224. doi: 10.11862/CJIC.20240359
17. [17]
  Husitu Lin , Shuangkun Zhang , Dianfa Zhao , Yongkang Wang , Wei Liu , Fan Yang , Jianjun Liu , Dongpeng Yan , Zhanpeng Wu . Flexible polyphosphazene nanocomposite films: Enhancing stability and luminescence of CsPbBr₃ perovskite nanocrystals. Chinese Chemical Letters, 2025, 36(4): 109795-. doi: 10.1016/j.cclet.2024.109795
18. [18]
  Biao Fang , Runwei Mo . PVDF-based solid-state battery. Chinese Journal of Structural Chemistry, 2024, 43(8): 100347-100347. doi: 10.1016/j.cjsc.2024.100347
19. [19]
  Panke Zhou , Hong Yu , Mun Yin Chee , Tao Zeng , Tianli Jin , Hongling Yu , Shuo Wu , Wen Siang Lew , Xiong Chen . Electron push-pull effects induced performance promotion in covalent organic polymer thin films-based memristor for neuromorphic application. Chinese Chemical Letters, 2024, 35(5): 109279-. doi: 10.1016/j.cclet.2023.109279
20. [20]
  Xinzhi Ding , Chong Liu , Jing Niu , Nan Chen , Shutao Xu , Yingxu Wei , Zhongmin Liu . Solid-state NMR study of the stability of MOR framework aluminum. Chinese Journal of Structural Chemistry, 2024, 43(4): 100247-100247. doi: 10.1016/j.cjsc.2024.100247

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(495)
HTML views(0)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return