MULTIPLE TRANSITIONS IN A DIMETHACRYLATE NETWORK

被引：14

作者：

WILSON, TW

机构：

[1] Dental Research Center, University of North Carolina, North Carolina, 27599-7455, Chapel Hill

[2] Research Triangle Institute, Dreyfus Laboratory, North Carolina, 27709-2194, Research Triangle Park

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1990年 / 40卷 / 7-8期

关键词：

Acrylic Monomers - Condensation Reactions - Acrylics - Curing - Plastics - Radiation Effects - Polymers - Mechanical Properties - Polyolefins - Crosslinking;

D O I：

10.1002/app.1990.070400710

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Triethylene glycol dimethacrylate, TEGDM, was cured to various dose levels (0.15–2.0 Mrad) by γ‐irradiation at 40°C and its dynamic mechanical properties were evaluated. The resultant products had up to four transition phenomena dependent upon dose. The highest temperature transition (IV) was due to the ultimate glass transition. Transition III (ca. 40°C) was due to additional reaction occuring just above the cure temperature. Transition 1 (ca. ‐60°C) occurred at low doses and was associated with residual monomer. Transition II (ca. ‐10°C) is due to association of (CH2CH2O) units in TEGDM monomer, and the associated regions persist in the crosslinked polymer. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：1195 / 1208

页数：14

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