Home

Citation: CHO SHIAW, CHANG CHIH-PING. MUTUAL INFLUENCE BETWEEN THE EFFECTS OF RADIATION AND THE CRYSTALLIZATION PROPERTIES OF POLYETHYLENE[J]. Acta Polymerica Sinica, ;1965, 7(6): 386-395. shu

MUTUAL INFLUENCE BETWEEN THE EFFECTS OF RADIATION AND THE CRYSTALLIZATION PROPERTIES OF POLYETHYLENE

Received Date: 27 August 1964

1．The samples of polyethylene irradiated with 1，20，50，1 00，and 200 megarad γ一ray were crystallized from dilute xylene solutions under the same conditions．The mot-phology of a series of crystals obtained changes regularly as the dose increases．Below the gel point,single crystals could be obtained． Beyond this point，dendritic crystals (becoming more and more irregular with increasing dose) were obtained．But when the crystallizing temperature was lowered or the cooling rate Was decreased，regular dendritic crystals or even single crystals could again be obtained．Therefore this change of morphology with increasing dose is due not to the change of the structure of the mole-cules，but to the increasing of the degree of supersatu．ration during crystallization．The higher the gel fraction is，the higher is the degree of supersaturation．2．Three kinds of typical crystalline morphology(they belong tO the linear，bran-ched，and three-dimensional network molecules) were observed from irradiated poly-ethylene．This indicates that within suitable range of dose．these three kinds of mole-cules do exist in irradiated polyethylene at the same time．3． The crystallization process of the polymer from dilute solution is also a process of spontaneous separation of the unlike molecules and a process of congregation of the like molecules．4． Single crystals of polyethylene prepared under the same conditions had been ir-radiated separately with 5，20，50，100，and 200 megarad γ-ray．The morphology of these irradiated crystals was studied with an electron microscope, Some of them re-mained unchanged，but．there were Iots of wrinkles on the others．Moreover，even in the same single crystal，many wrinkles were found in some sectors，but none in the others． The unequal distribution of the wrinkles indicates that a perfect crystal lattice has higher resistance to γ-radiation．It also indicates that every sector in a hollow pyramid crystal is a structural unit of more perfect crystalline lattice．
1. [1]
  Dan LUO , Xingcheng LIU , Dong LI , Tong CHANG . Metal-support interaction effects on CO activation over Co_n/SiO₂ catalysts. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2337-2344. doi: 10.11862/CJIC.20250003
2. [2]
  Zhaoxuan ZHU , Lixin WANG , Xiaoning TANG , Long LI , Yan SHI , Jiaojing SHAO . Application of poly(vinyl alcohol) conductive hydrogel electrolytes in zinc ion batteries. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 893-902. doi: 10.11862/CJIC.20240368
3. [3]
  Yanzhe WANG , Xiaoming GUO , Qiangsheng GUO , Liang LI , Bin LU , Peihang YE . Effect of Ce introduction on the low-temperature performance of NiAl catalyst for CO₂ methanation. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2218-2228. doi: 10.11862/CJIC.20250202
4. [4]
  Jiaxi Xu , Yuan Ma . Influence of Hyperconjugation on the Stability and Stable Conformation of Ethane, Hydrazine, and Hydrogen Peroxide. University Chemistry, 2024, 39(11): 374-377. doi: 10.3866/PKU.DXHX202402049
5. [5]
  Tong Zhou , Liyi Xie , Chuyu Liu , Xiyan Zheng , Bao Li . Between Sobriety and Intoxication: The Fascinating Journey of Sauce-Flavored Latte. University Chemistry, 2024, 39(9): 55-58. doi: 10.12461/PKU.DXHX202312048
6. [6]
  Zhiwen HU , Ping LI , Yulong YANG , Weixia DONG , Qifu BAO . Morphology effects on the piezocatalytic performance of BaTiO₃. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 339-348. doi: 10.11862/CJIC.20240172
7. [7]
  Weihan Zhang , Menglu Wang , Ankang Jia , Wei Deng , Shuxing Bai . Surface Sulfur Species Influence Hydrogenation Performance of Palladium-Sulfur Nanosheets. Acta Physico-Chimica Sinica, 2024, 40(11): 2309043-0. doi: 10.3866/PKU.WHXB202309043
8. [8]
  Zeyi Yan , Ruitao Liu , Xinyu Qi , Yuxiang Zhang , Lulu Sun , Xiangyuan Li , Anchao Feng . Exploration of Suspension Polymerization: Preparation and Fluorescence Stability of Perovskite Polystyrene Microbeads. University Chemistry, 2025, 40(4): 72-79. doi: 10.12461/PKU.DXHX202405110
9. [9]
  Ruoqian Zhang , Chaoqun Mu , Yali Hou , Mingming Zhang . 四苯乙烯基多组分金属有机笼的构筑及其固态发光性能研究. University Chemistry, 2025, 40(8): 277-283. doi: 10.12461/PKU.DXHX202410027
10. [10]
  Bolin Sun , Jie Chen , Ling Zhou . 乙烯型卤代烃的亲核取代反应. University Chemistry, 2025, 40(8): 152-157. doi: 10.12461/PKU.DXHX202410032
11. [11]
  Zhihuan XU , Qing KANG , Yuzhen LONG , Qian YUAN , Cidong LIU , Xin LI , Genghuai TANG , Yuqing LIAO . Effect of graphene oxide concentration on the electrochemical properties of reduced graphene oxide/ZnS. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1329-1336. doi: 10.11862/CJIC.20230447
12. [12]
  Jiahe LIU , Gan TANG , Kai CHEN , Mingda ZHANG . Effect of low-temperature electrolyte additives on low-temperature performance of lithium cobaltate batteries. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 719-728. doi: 10.11862/CJIC.20250023
13. [13]
  Rui Yang , Hui Li , Qingfei Meng , Wenjie Li , Jiliang Wu , Yongjin Fang , Chi Huang , Yuliang Cao . Influence of PC-based Electrolyte on High-Rate Performance in Li/CrO_x Primary Battery. Acta Physico-Chimica Sinica, 2024, 40(9): 2308053-0. doi: 10.3866/PKU.WHXB202308053
14. [14]
  Yan Xiao , Shuling Li , Yifan Li , Jianing Fan , Linlin Shi . Discovering the Beauty of Life: Adding Some “Ingredients” to Crystals. University Chemistry, 2024, 39(6): 366-372. doi: 10.3866/PKU.DXHX202312025
15. [15]
  Yuxin CHEN , Yanni LING , Yuqing YAO , Keyi WANG , Linna LI , Xin ZHANG , Qin WANG , Hongdao LI , Wenmin WANG . Construction, structures, and interaction with DNA of two Sm^Ⅲ₄ complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1141-1150. doi: 10.11862/CJIC.20240258
16. [16]
  Xiaowu Zhang , Pai Liu , Qishen Huang , Shufeng Pang , Zhiming Gao , Yunhong Zhang . Acid-Base Dissociation Equilibrium in Multiphase System: Effect of Gas. University Chemistry, 2024, 39(4): 387-394. doi: 10.3866/PKU.DXHX202310021
17. [17]
  Yuanchao LI , Weifeng HUANG , Pengchao LIANG , Zifang ZHAO , Baoyan XING , Dongliang YAN , Li YANG , Songlin WANG . Effect of heterogeneous dual carbon sources on electrochemical properties of LiMn_0.8Fe_0.2PO₄/C composites. Chinese Journal of Inorganic Chemistry, 2024, 40(4): 751-760. doi: 10.11862/CJIC.20230252
18. [18]
  Zeyuan WANG , Songzhi ZHENG , Hao LI , Jingbo WENG , Wei WANG , Yang WANG , Weihai SUN . Effect of I₂ interface modification engineering on the performance of all-inorganic CsPbBr₃ perovskite solar cells. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1290-1300. doi: 10.11862/CJIC.20240021
19. [19]
  Ruixin XU , Hongtuo LI , Chen SHI , Yanhong YAN . Factors influencing the spectral properties of composite luminescent materials SrTiO₃: Eu³⁺/SrAl₂O₄: Eu²⁺, Dy³⁺. Chinese Journal of Inorganic Chemistry, 2025, 41(11): 2307-2316. doi: 10.11862/CJIC.20250055
20. [20]
  Huiying Xu , Minghui Liang , Zhi Zhou , Hui Gao , Wei Yi . Application of Quantum Chemistry Computation and Visual Analysis in Teaching of Weak Interactions. University Chemistry, 2025, 40(3): 199-205. doi: 10.12461/PKU.DXHX202407011

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(199)
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